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Tell us what you think of the latest build??
Problem reported by Brian Bjerring-Jensen - VonBjerring GmbH - 10/3/2025 at 12:46 AM
Submitted
So we know what to expect. :)

111 Replies

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DO NOT UPGRADE TO BUILD 9406!!!!!

Completely wiped the webadmin and no access to the domains.<

Downgrade did the trick.

EDIT: Tony installed the latest version and server is rebooted. All is good as of now. Will keep an eye on it during the weekend.
JerseyConnect Team Replied
10/3/2025 at 12:58 PM
Just updated to 9406 on our test server and didn't have any issues with webadmin access post upgrade. Quick pass through the system and everything looks to be OK for now. 
Richard Laliberte Replied
10/3/2025 at 1:53 PM
Can report we upgraded to 9406 as well and so far no issues.
Daniele (TDBnet) Replied
10/6/2025 at 1:10 AM
9406 updated without critical problems!

But... One issue and one suggestion:

- the new "What's new" box after user logon should be enabled by the admin, not forcefully by the update. Where can I disable it? :-(

- If I now can enable or disable the video of an attendee, why not also its audio? Disabled microphone is a more frequent oversight than the video ;-)

Thank you
Daniele
Gabriele Maoret - SERSIS Replied
10/6/2025 at 1:31 AM
Update to SM 9406 on Debian 12 Linux: I have issue with Outlook/MAPI access after upgrading due to IPv6.

Solved disabling IPv6 on the Debian 12 server. See here:
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
B
Brian Kropf Replied
10/6/2025 at 3:45 AM
Upgraded early October 4, no issues reported so far.
Daniele (TDBnet) Replied
10/6/2025 at 7:39 AM
Found a bug regression.
On build 9224 you fixed: "In Online Meetings on mobile devices, the focus automatically shifts to the user when they are speaking."

Now this behaviour there's again. Users are very annoyed!

Daniele
You cannot add more than 2 rules in a domain then the third rule gets deleted after you hit save.
Roger Replied
10/7/2025 at 2:09 PM
I would definitely not install the update. I have opened a ticket because calendar entries created in clients such as Outlook, eM Client, or Apple Calendar are not saved on the server and therefore not synchronized. Tested on different clients / regions with Mac and Windows 10/11. Downgrading to 9400 fixed it immediately. we use german / swiss german operating systems and client-applications. I don't know if this has something to do with.

The change logs for 9406 indicates some fixes in MAPI-Protocol for Calendar and there maybe the bug for this sync-issue happend.
Gabriele Maoret - SERSIS Replied
10/8/2025 at 12:54 AM
Hi Roger! 
I'm having the same problem you reported regarding calendars: some users who use EM Client (EWS accounts) and MS Outlook (MAPI Exchange accounts) have noticed that the appointments they mark in their calendar are NOT being saved on the SmarterMail server (nor are invitations to other users...).

The worst thing is that when you resync the client, the created appointments simply disappear.

Downgrading to 9392 (because it was my previous working version, never tried 9400...) solves the problem, but the appointments must be recreated from scratch...
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
Can you upgrade to 9400 so we can see if thats the latest stable build? We havent had any reports on the latest build other than weird favorite folder actions....

It would be great to have a reference point to get back to if the new builds are broken so we know what works so we can keep our customers happy
Gabriele Maoret - SERSIS Replied
10/8/2025 at 3:47 AM
Hi Brian!

I will try 9400 today...
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
Inbox outlook via MAPI doesnt reflect the inbox on the devices or webmail.

Missing the most recent mail which is an accepted meeting request. Resync alll devices doesnt work.
Roger Replied
10/8/2025 at 4:33 AM
9400 definitly works with the calendar
Gabriele Maoret - SERSIS Replied
10/8/2025 at 4:48 AM
Upgraded to 9400 a minute ago... Waiting for reports...
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
Richard Laliberte Replied
10/8/2025 at 5:56 AM
We had reports of a few clients getting errors saving Calendar changes in webmail, so the problem might be a little larger than just MAPI.
Downgraded to 9400 and it made outlook significantly faster and more responsive.
Gabriele Maoret - SERSIS Replied
10/9/2025 at 7:47 AM
Build 9400 seems to work OK for me... Waiting a few days to confirm.
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
Gabriele Maoret - SERSIS Replied
10/9/2025 at 11:45 PM
Build 9413 installed... Finger Crossed...
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
First mail sent on 9413 and the headers are gone again... wuuuhuuuuu :)
Roger Replied
10/10/2025 at 11:23 AM
What a mess. Is this even tested before releasing something like this? How can this be?
Richard Laliberte Replied
10/10/2025 at 11:33 AM
To be fair, we had a pretty good stretch there where they weren't un-doing fixes they applied in previous version lol
N
Nathan Replied
10/11/2025 at 12:59 PM
Why does it constantly feel like you're playing Russian roulette with upgrades :-/
Gabriele Maoret - SERSIS Replied
10/12/2025 at 4:43 AM
I'm not seeing issue with 9413 at the moment...

I'll wait few days to confirm it, but to me it seems good...
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
Can you add more than 3 rules to inbox/sent items /deleted items folder auto clean and use 1825 days as a value??

And if you add more than one domain on the same smartermail server to outlook and add their inbox to favorites folder, will it stay there after a outlook restart?

And will the calendars stay as well??
Gabriele Maoret - SERSIS Replied
10/12/2025 at 9:02 AM
Hmm... I should do some testing because I haven't heard of anyone using any of the cases you mentioned yet...
But not today, and in the next few days I'll be busy with inspections for ISO 22301, 9001, and 27001 renewals, so I don't know when I'll have time to do them...
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
And now my invites with danish characters looks like this on the latest build... where it should have said "på" and netto's and "møde"
Derek Curtis Replied
10/13/2025 at 8:21 AM
Employee Post
Brian, when you say you can't create more than 3 auto-clean rules for a folder, you are limited to 3 (Size of Folder, Time in Folder, Message Date). Are you trying to add user auto-clean rules that are, say, different than ones set by the Administrator? I'm pretty sure those 3 options have not been changed or others removed in any recent Build. In our testing on the latest, as well as the previous Build, you could create 3 rules and save them all. 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
I cant on the server on all the domains.

This is general


I cant add the third rule. SM has tried to do it as well. Wont do it.
Derek Curtis Replied
10/13/2025 at 9:49 AM
Employee Post
Ah, I found the ticket. I was doing it as a logged in user. Looks like it's an issue with impersonation? 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
I dont impersonate amy user besides admin....
9427 released.... any takers?
Nageswara Rao Anumolu Replied
10/28/2025 at 12:08 AM
[2025.10.25] 07:32:32.597 [00472241] [MessageSniffer Client] Done Scanning Message. MessagePath: d:/SmarterMail/Spool/SubSpool5/-1789200472241.eml Results AS: 0
[2025.10.25] 07:34:04.743 [MessageSniffer Client] Daemon Starting...
[2025.10.25] 07:34:04.747 [MessageSniffer Client] TestConnectionToMs
[2025.10.25] 07:34:06.755 [MessageSniffer Client] Daemon Started.
[2025.10.25] 07:34:06.804 [MessageSniffer Client] TestConnectionToMs success. Enabled services: True
[2025.10.25] 07:34:06.804 [00472241] [MessageSniffer Client] Start Scanning Message. Enabled Services: True, MailFrom: a1f380e6-b146-11f0-aab5-00163e0dfe2e@prod.leadmicma.com, SenderIP: 8.219.169.206, MessagePath: d:/SmarterMail/Spool/SubSpool5/-1789200472241.eml
[2025.10.25] 07:34:08.953 [00472241] [MessageSniffer Client] Done Scanning Message. MessagePath: d:/SmarterMail/Spool/SubSpool5/-1789200472241.eml Results AS: 0
[2025.10.25] 07:34:50.225 [32983000] [MessageSniffer Client] Error: The CancellationTokenSource has been disposed.


After updation 9427, message sniffer and cyren not able to run.
Derek Curtis Replied
10/28/2025 at 7:24 AM
Employee Post
We're aware of the Cyren and Message Sniffer issues and have a fix in place for it. We can send out custom Builds with just the fix as needed, post here or send us a ticket and we'll get it to you. (For those of you with tickets already, we'll send over the custom Build.) We will do a release this week for this issue, and any others that pop up. A larger release is coming next week. 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
Nageswara Rao Anumolu Replied
10/28/2025 at 8:49 AM
Please share the custom build.
Michael Replied
10/28/2025 at 12:03 PM
Please share custom build. We've seen large influx of Spam and phishing attempts since last update. This explains it. 
Derek Curtis Replied
10/28/2025 at 2:57 PM
Employee Post
We sent the build to those who have requested it, or who already had tickets with us on this. If you want the custom build early, please start a ticket. As mentioned, we will have this released publicly in a day or so. 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
echoDreamz Replied
10/28/2025 at 5:00 PM
Ill take the custom release too, having Cyren issues.
Nageswara Rao Anumolu Replied
10/28/2025 at 9:29 PM
Nowadays, new updates are breaking more than fixing something. It has become so unreliable.
D
David Feuer Replied
10/30/2025 at 2:18 PM
Is the release still scheduled for today?
Derek Curtis Replied
10/30/2025 at 3:39 PM
Employee Post
Yeah, it was actually just released. :)
Derek Curtis COO SmarterTools Inc. www.smartertools.com
9448 released. Any takers yet?? Will try to install over the weekend to see if it performs
Daniele (TDBnet) Replied
11/14/2025 at 3:35 AM
No issues here. Installed 4 hours ago.
Gabriele Maoret - SERSIS Replied
11/14/2025 at 4:47 AM
Installed 10hours ago.

All OK at the moment
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
C
Cory P. Replied
11/14/2025 at 6:45 AM
Server is upgraded and seems super fast and no issues reported yet. Full disclosure, none of our users use MAPI but many use EWS. 
Right now it seems the UI is much faster in admin mode. Thats a good improvement 
Heads up...a customer reports receiving mail dated tomorrow. Thats not good.
And if you send email to an address that forwards to the smartermail server, you end up with two identical emails.
And an email test sent from a smartermail server to an external account that has forward sent to the same smartermail server shows the out of office reply in the inbox folder... but the mail doesnt show twice.
Brian A. Replied
11/17/2025 at 8:17 AM
9448 - Installed Saturday.... ever since, I'm getting lots of "Brute force by Password" intrusion detections from outside the USA.

I haven't had these for a couple of years since they added "Block Authentication by Country" and I've limited authentication to USA only.
N
Nathan Replied
11/17/2025 at 8:33 AM
Perhaps the Geo DB is out of date?
Brian A. Replied
11/17/2025 at 10:51 AM
SM says the IP's are from outside the USA. I haven't got any of these before the update to 9448 in years.
Roger Replied
11/17/2025 at 11:10 AM
@Brian
You can check the origin from the IP-Adresses on https://db-ip.com or https://iplocation.io/ip/
J
J. LaDow Replied
11/17/2025 at 5:35 PM
IP API (add in the IP(v4|v6) at the end without the braces -- simple JSON output:

https://api.ipapi.is/?q={IP_ADDRESS}
MailEnable survivor / convert --
Uhhhh


Build 9476 (Dec 11, 2025)

                            
  • Added: A notification for system administrators when a domain is renamed.
  •                                         
  • Added: API: System Admin -> ClearLogFiles.
  •                                         
  • Added: API: System Admin -> GetRoutingRules.
  •                                         
  • Added: API: System Admin -> ListRoutableAddresses.
  •                                         
  • Added: API: System Admin -> ListRoutableAddresses.
  •                                         
  • Added: API: System Admin -> SetRoutingRuleOrder.
  •                                         
  • Added: API: System Admin -> SetRoutingRules.
  •                                         
  • Added: EULA to the Linux installer.
  •                                         
  • Added: Routing Rules, or the ability to set system-level "content filters" for incoming and outgoing messages.
  •                                         
  • Changed: [HA] [HUB] Hub columns have been re-ordered for easier management of a cluster.
  •                                         
  • Changed: [HA] [HUB] Modal text on IDS Rules now matches what's displayed for Enterprise installs.
  •                                         
  • Changed: [HA] [HUB] Updated some warnings in the Hub to match the style and behavior of SmarterMail Enterprise.
  •                                         
  • Changed: Calendar, Contacts, Tasks, and Notes folders are now aligned more properly.
  •                                         
  • Changed: Content Filter and Events now utilize grids so managing Conditions and Actions is more efficient.
  •                                         
  • Changed: Enhanced IP Rotation functionality and re-organized for better usability.
  •                                         
  • Changed: Events Actions that support variables now display those variables on the Actions modal.
  •                                         
  • Changed: IDS rules for Password Retrieval have inconsistency when specifying "Retrieval" versus "Recovery".
  •                                         
  • Changed: Replaced the "collapse header" text with an icon for mobile.
  •                                         
  • Changed: Upgraded SmarterMail to .NET 10.
  •                                         
  • Fixed: [HA] [HUB] AntiSpam -> DMARC fallback option "No fallback" shows as invalid.
  •                                         
  • Fixed: [HA] [HUB] On the Accounts page, the mailing list grid's Enabled column is not centered.
  •                                         
  • Fixed: [HA] [HUB] SmarterMail Hub on Windows is creating hub log files in C:\Windows\System32.
  •                                         
  • Fixed: [HA] [HUB] Some Hub pages aren't properly mapped to help documentation.
  •                                         
  • Fixed: [HA] [HUB] When changing a hostname in Settings, the change doesn't persist when switching off the page.
  •                                         
  • Fixed: [HA] Authenticated SMTP accounts are delivering emails to users' junk/spam folders.
  •                                         
  • Fixed: [HA] Autocomplete on a split domain doesn't always show users from other nodes.
  •                                         
  • Fixed: [HA] Failed inter-node delivery for Unicode users.
  •                                         
  • Fixed: [HA] GAL is not fully synced across a split domain.
  •                                         
  • Fixed: [HA] Renaming a domain that is "split" doesn't always get propagated across nodes.
  •                                         
  • Fixed: [HA] Spam check issues with nodes receiving messages from an external source.
  •                                         
  • Fixed: [HA] Split domain, inter-node local deliveries run spam checks.
  •                                         
  • Fixed: Archive search can fail when a domain has large (TB+) search files.
  •                                         
  • Fixed: Calendar events from migrated Exchange users are not showing the correct dates and times.
  •                                         
  • Fixed: Cannot favorite a Public Folder Calendar in Outlook (MAPI).
  •                                         
  • Fixed: Cannot remove delegates from webmail if user accounts are imported from LDAP.
  •                                         
  • Fixed: Delegates are not synchronizing to webmail when added from Outlook.
  •                                         
  • Fixed: Delivery receipts appear broken in webmail.
  •                                         
  • Fixed: Documentation for the GetDomainPasswordRestrictions API doesn't include the correct return information.
  •                                         
  • Fixed: Domain & user Disk Space Usage Event triggers every 15~20 minutes.
  •                                         
  • Fixed: Exporting 12,000 users to CSV file results in endless blue spinner.
  •                                         
  • Fixed: Having 1000+ Blocked Senders or Trusted Senders can sometimes show two lists in the modal.
  •                                         
  • Fixed: IMAP search does not return a correct result when no items are found.
  •                                         
  • Fixed: Issues with how the sender and sent properties are saved when sending using a domain alias from Outlook (MAPI).
  •                                         
  • Fixed: It's possible to edit appointments with Read-Only permissions on a Public Calendar Folder in Outlook (MAPI).
  •                                         
  • Fixed: Larger domains can delay sending from autocomplete searches.
  •                                         
  • Fixed: Mailbox migration from Windows to Linux occasionally fails.
  •                                         
  • Fixed: Maximum Message Size for SMTP In (Settings>Protocols) is 50Kb by default causing bounces.
  •                                         
  • Fixed: Moving sub-folders to a new folder can fail with “This Folder Already Exists” error.
  •                                         
  • Fixed: On Troubleshooting -> Services, starting multiple services shows the wrong button style.
  •                                         
  • Fixed: Online Meetings created via Scheduling pages show an incorrect start time.
  •                                         
  • Fixed: Recipients with quote in the display name don't display correctly in webmail or clients.
  •                                         
  • Fixed: Relative attachment download URL is showing for attachments in an email.
  •                                         
  • Fixed: Sending a non-scheduled message with "Request Delivery Receipt" enabled doesn't actually request a delivery receipt.
  •                                         
  • Fixed: Some delivery receipts don't display properly in webmail or Outlook (MAPI).
  •                                         
  • Fixed: Trying to send using an external SMTP account or domain alias from Outlook (MAPI) doesn't send correctly.
  •                                         
  • Fixed: Unable to delete a meeting invite from a public resource unless you're the owner of the meeting.
  •                                         
  • Fixed: User default propagation for disabling Chat does not reflect under Accounts.
  •                                         
  • Fixed: When adding the first attendee to an appointment in iOS Mail (EWS), iOS is not sending meeting invite.
  •                                         
  • Fixed: When moving a sub-folder to another root folder with a similar name the sub folder does not appear under correct root folder.
  •                                         
  • Efficiency: GAL changes are now processed asynchronously when renaming a domain.
  •                                         
  • Efficiency: Move to .NET 10, which includes garbage collection changes, and additional protocol optimizations resulted in decreased memory usage.
Michael Wallace Replied
12/12/2025 at 7:45 AM
So many updates... but do they all make the SmarterMail server work?
We would like to know :)

We have issues right now with corrupted timestamps from build 9400 onwards.

So we had to revert back to 9392 to get rid of the errors and have the client account working correctly again.
Sébastien Riccio Replied
12/12/2025 at 8:02 AM
I planned to upgrade this weekend, in order to fix the sub-folder move issues that our users complain about, but after reading the changelog I'm a bit nervousi it could break something else :/
We'll see how it goes...
Sébastien Riccio System & Network Admin https://swisscenter.com
Michael Wallace Replied
12/12/2025 at 12:27 PM
We just went from Windows Build 8664 (Sept. 21, 2023) to Linux Build 9455. The one thing on the list which shows was fixed is the SmarterMail Migration from an older Windows Build to the newer Linux Build. We stayed on 8664 because of all the issues we were reading about and those never seemed to get fixed for a long time. At least, after migrating ALL the emails over (without the help of the SmarterMail Migration), emails look to be working on the current build (with the exception of the sub-folders issues). We are so very glad all our Microsoft Active Sync accounts are functioning properly.
Sébastien Riccio Replied
12/12/2025 at 10:08 PM
Latest build installed a few mintes ago. Service is running :) Let's see if no issue are reported in the next days. Crossing fingers :)
Sébastien Riccio System & Network Admin https://swisscenter.com
Michael Replied
12/13/2025 at 12:25 AM
So far so good. 24 hours. No issues. 
Daniele (TDBnet) Replied
12/14/2025 at 1:18 AM
Everything's fine here.
B
Bruce Replied
12/14/2025 at 9:08 AM
Great, there are improvements for outbound SMTP, including rotating outbound IP addresses. Unfortunately, it doesn't seem to work. 

When setting two outbound SMTP IP addresses to rotate every 10 minutes, we ended up with a spool full of hundreds of unsent emails with 'Error: 0'. 

After disabling the new feature and setting a single outbound IP, we were able to clear the queue.
Derek Curtis Replied
12/14/2025 at 11:06 AM
Employee Post
Bruce, I'll have the guys start a ticket with you, if you haven't started one already. In our testing, multiple IPs worked fine. 

EDIT: I started an incoming ticket for this. 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
S
SmP Replied
12/14/2025 at 1:40 PM
Aside from the aforementioned comment about the outbound rotating IP, upgraded to the latest release and have run it without issues for the past 72 hours!
echoDreamz Replied
12/14/2025 at 10:39 PM
Great job on the rotation stuff SmarterTools! We use the "every x messages" IP rotation and so far, it is working well. Derek - Are we able to specify an SMTP EHLO hostname for each IP? As well, could there also be a "random" option, just to pick a random IP from the pool for each message sent?
B
Bruce Replied
12/15/2025 at 2:46 AM
Thanks for the reply, Derek.

I tested the outbound IP rotation again, allowing more time to explore different settings, and it is now functioning properly. I had to disable 'Enable Failure Tracking'; once I did this, the queued outbound delivery emails with Error: 0 were successfully sent.


The only thing I can think that might be diffrent in my setup is I have IPv6 enabled for outbound emails sending as well as IPv4. 
"Changed: Calendar, Contacts, Tasks, and Notes folders are now aligned more properly."
Can I get a screen shot ? We are still using 9014, Hopefully this is the fix I been asking about for a few years.
www.HawaiianHope.org - Providing technology services to non profit organizations, low income families, homeless shelters, clean and sober houses and prisoner reentry programs. Since 2015, We have refurbished over 11,000 Computers !
M
Mike Mulhern Replied
12/15/2025 at 5:17 AM
Does anyone know if all of the MAPI problems have been fixed?  Been holding off updating due to uncertainty about MAPI.
Gabriele Maoret - SERSIS Replied
12/15/2025 at 7:17 AM
@Mike Mulhern:

I have six different servers, all using MAPI, and they all work pretty well (aside from some well-known limitations) on version 9455...
What kind of problems are you having with MAPI?
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
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Phillip Davis Replied
12/15/2025 at 8:20 AM
Updated to Build 9476. We now have one domain that will not populate the user list. All other domains are fine. It shows the number of users, but will not populate the user list.
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Mike Mulhern Replied
12/15/2025 at 8:26 AM
Hi Gabriele---I'm not having any MAPI issues but I am on a build from a few months ago.  I just recall reading some threads about MAPI problems on a few builds and wanted to make sure that those issues were resolved.  Sounds like they are.  S/b ok for me to update.  I appreciate you letting me know.
Russ Miller Replied
12/15/2025 at 8:39 AM
I have the same issue as Phillip. I have a domain (that I am aware of) that will not populate the user list and those users are unable to access their email.
Have you made a emergency ticket about it?
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Phillip Davis Replied
12/15/2025 at 8:59 AM
For $350? No, I haven't opened an emergency ticket.
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Phillip Davis Replied
12/15/2025 at 9:00 AM
My client is also unable to access email.
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Phillip Davis Replied
12/15/2025 at 9:10 AM
UPDATE: Called SmarterTools, they stated that this is a known issue with Build 9476 and developers are looking into it. 
And they didnt offer to fix it?? A client cant be offline that long...
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Phillip Davis Replied
12/15/2025 at 10:50 AM
In my case, they had me stop the smartermail service and rename the gal.json file on the affected domain (something like oldgal.json or gal.json.old). Then restart the service which recreated the gal.json file and all seems to be working now.
Derek Curtis Replied
12/15/2025 at 10:55 AM
Employee Post
To piggy-back on to Phillip's post, from our review and tests using config-only copies we've received from some very helpful users, the issue appears related to duplicate entries in the GAL. 

The quick fix is to stop the mail service, rename gal.json, then restart the service.

The devs have these config-only copies and are reviewing as well. 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
echoDreamz Replied
12/15/2025 at 10:49 PM
For us, renaming the gal after stopping the service did not fix the issue. Domain is showing it has x number of users, but the grid is empty and the users cannot login.
Sabatino Replied
12/16/2025 at 12:51 AM
@echoDreamz

SMTP EHLO
Sabatino Traini Chief Information Officer Genial s.r.l. Martinsicuro - Italy
Build 9476 has got an important note.... not beeing able to downgrade to solve issues.

So be ware.
Gabriele Maoret - SERSIS Replied
12/16/2025 at 9:02 AM
Brian Bjerring-Jensen - VonBjerring GmbH wrote:
Build 9476 has got an important note.... not beeing able to downgrade to solve issues.

This is why I haven't updated anything yet and am waiting at 9455... 😁
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
Russ Miller Replied
12/16/2025 at 9:02 AM
I, too, tried renaming gal.json and restarting the SmarterMail service, but the user accounts still appeared blank. I ended up downgrading to 9455, but since then, the server has been running at 100% CPU (typically it is very low) and keeps timing out. I also lost all flags and read status on email accounts. I am looking at an effective way to restore mailbox.cfg for all user accounts to hopefully restore email statuses.
Derek Curtis Replied
12/16/2025 at 9:17 AM
Employee Post
Revised workaround instructions:

1. Stop the mail service
2. Rename gal.json (e.g., gal-old.json)
3. Rename the gal.json in the ArchiveData folder
4. Restart the mail service

Regarding downgrading, we don't generally recommend it, period. With this version, you can revert to an older Build, but if you do there are some things you'll need to do, like rebuilding folders, in order for it to work properly. Therefore, the note regarding the risks around downgrading. 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
Russ Miller Replied
12/16/2025 at 11:37 AM
That worked for me. Thank you!
echoDreamz Replied
12/16/2025 at 12:48 PM
Just to note, after doing the steps above, the gal.json does not get recreated, so it appears the domain(s) are running without a gal.json file.

Hopefully the update resolves this?
Sébastien Riccio Replied
12/18/2025 at 11:31 PM
Hey folks,

A quick question about build 9476. I don't remember seeing this warning when I checked the changelog before I upgraded: https://www.smartertools.com/smartermail/release-notes/current


  • IMPORTANT: Due to significant changes in SmarterMail, you may not be able to downgrade to previous versions. If you do, it may not be possible to restore your installation to previous versions. Regardless, it is recommended that you take a full backup of your before upgrading.
I would like to know if this was added afterwards, because I'm usually careful about upgrading when seeing such warning and waiting some days/week before applying the upgrade.

Thanks
Sébastien Riccio System & Network Admin https://swisscenter.com
It was. About 48hrs later.
9483 released... 
Michael Wallace Replied
12/19/2025 at 7:40 AM
@Sébastien - Right with you on the same 'Important' warning message. Had we known, we would've waited, but luckily build 9476 looks to be stable for us so on our Linux server.

I assume with the following update:

  • Fixed: Upgrade to Build 9476 (Dec 11, 2025) can cause a domain's Accounts page to go blank.
SmarterTools quickly added the warning, after finding the fix for the domain's to go blank.
Michael Wallace Replied
12/19/2025 at 7:44 AM
Has anyone updated to Build 9483?
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SmP Replied
12/19/2025 at 8:04 AM
Yes, updated it on systems yesterday and no issues at this point (not running MAPI).
Gabriele Maoret - SERSIS Replied
12/19/2025 at 8:23 AM
I, just in case, will stay on 9455 for a few more days...
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
Upgraded today and havent seen anything so far...
Daniele (TDBnet) Replied
12/19/2025 at 9:38 AM
All is fine here.
Only one issue: if you remove a waiting attendee from online meeting, it's black video window appears instead of yours. I don't know from which version (9483? Previous?).

Daniele
HAd to reboot the server since I couldnt restart smartermail service. Outlook MAPI stood trying to connect.
Michael Wallace Replied
12/20/2025 at 8:33 AM
On one of our servers, many of our clients use MAPI (MS Outlook) and Active Sync. If Brain B. has/d issues, we will wait to update.

I personally want to thank you all, this Community, for these updates.
Gabriele Maoret - SERSIS Replied
12/22/2025 at 6:24 AM
Updated to 9483...

Finger crossed!
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
anybody else cant add a domain to the whitelist??
Gabriele Maoret - SERSIS Replied
12/24/2025 at 2:20 AM
Hi Brian!

Can you explain better what problem occurs and where it occurs (a screenshot would be helpful) so I can test it on my servers and see if I have the same problem too?
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
Trying to whitelist a domain to bypass default DoS rule but cant. Only option is to bypass SMTP auth and I dont need that.

One of their servers keep triggering 
the default DoS rule and blocks all emails from their warehouse to their SAP.
Gabriele Maoret - SERSIS Replied
12/24/2025 at 1:48 PM
Hmm... I see the same behavior...
I guess you should try using IPs to do what you want...
From what I understand, for domains, you can only bypass SMTP authentication.

Furthermore, from what I see, I can't find a SPECIFIC option for bypassing the anti-DoS rule for IPs either, so I don't know if you'll be able to do it with IPs either...
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
Exactly. And whitelisting a domain will be the right way to do it since whitelisting an IP that could be subject to change and therefore maintenance.
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Douglas Foster Replied
12/25/2025 at 9:32 AM
Brian:  for your unwanted IPS trigger, is the traffic coming from unauthenticated SMTP inbound, or authenticated and potentially outbound?
Its the default DoS rule triggered on an IP with reverse DNS and everthing seems legit. Its a clients warehouse IP trying to deliver emails regarding shipments.

Its coming from a variety of IP's and its a pain to whitelist single IP's all the time and maintain the list.
D
Douglas Foster Replied
12/25/2025 at 3:54 PM
Then it looks like your only option is to disable the rule or greatly modify the trigger level    If it is an authenticated connection, I think the throttle rules would apply instead of default DoS.   

 Other strategy would be to give the SAP application a dedicated (and unpublished) MX gateway.   Two gateways would allow you to apply different rule setings on different gateways.
Stefano Replied
12/30/2025 at 7:06 AM
So, what is the best/most stable version available today? 😊
Michael Wallace Replied
12/30/2025 at 8:25 AM
@Gabriele - How has 9483 been, especially with EAS, MAPI & EWS?
Gabriele Maoret - SERSIS Replied
12/31/2025 at 3:47 AM
I am quite satisfied with the 9483, no problems raised by any user after the upgrade
Gabriele Maoret - Head of SysAdmins and CISO at SERSIS Currently manages 6 SmarterMail installations (1 in the cloud for SERSIS which provides services to a few hundred third-party email domains + 5 on-premise for customers who prefer to have their mail server in-house)
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