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Update to SmarterMail Build 9455
Problem reported by Sabatino - 11/21/2025 at 12:51 AM
Not A Problem
I'm about to upgrade to SmarterMail Build 9455 from 100.0.9168.31407.

What should I expect? Should I start praying? :-)
I don't use MAPI/EWS.
1,500 users, 200 domains, only IMAP and a few POP.
Sabatino Traini
      Chief Information Officer
Genial s.r.l. 
Martinsicuro - Italy
Gabriele Maoret - SERSIS Replied
11/21/2025 at 1:32 AM
I updated a few hours ago.
So far everything seems to be working fine...
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)
Sébastien Riccio Replied
11/21/2025 at 5:46 AM
Hi,

Not sure if related to this very build, but while testing some stuff with latest build (testing if scheduled folder was now gone from e-mail clients), I noticed that in my emClient the autodiscover in emClient, for my EWS enabled account doesn't work anymore.
It was working correctly months ago.

If I disable EWS for the account, the autodiscover for the same account works correctly.

Not sure that's related to this update though.

I asked in emClient forum if there is a way to turn on debug log to get to the bottom of this.
https://forum.emclient.com/t/how-to-enable-debug-for-emclient-autodiscover-process/112650

Kind regards.
Sébastien Riccio System & Network Admin https://swisscenter.com
Derek Curtis Replied
11/21/2025 at 8:31 AM
Employee Post
I just set up my account at home (was only using eM Client for Gmail) and autodiscover worked just fine for my SmarterTools account. There haven't been any EWS-related changes in the last few updates, so not sure what may be the issue. I'm on 10.3.2619 at home, if that matters. 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
Sébastien Riccio Replied
11/21/2025 at 8:38 AM
Thank you for the feedback Derek.

I'm not sure it has something to do with the SmarterMail update so if I can get somehow to get emclient do generate debug logs about the autodiscovery process, I might be able to find what is going on.

It's strange that it works good if i disable EWS for this account, the autodiscover is successfull.

I tried to get some fiddler capture but it looks like emclient autodiscover process is not captured by Fiddler (with HTTPS decrypt enabled of course)...

Kind regards.
Sébastien Riccio System & Network Admin https://swisscenter.com
Sébastien Riccio Replied
11/21/2025 at 9:09 AM
Marked As Resolution
Hey Derek,

The autodiscover was failing in emClient right after displaying "Contacting o365 (spy) network....".

So to try to bypass this I added into to my C:\Windows\system32\drivers\etc\hosts" file:

127.0.0.1 autodiscover.outlook.com outlook.office365.com

And now autodiscover is working again with EWS enabled.

It looks like MS has stored some informations about my domain on their cloud, even that I never used the domain with any of their service, except a few weeks ago, I tried to configure my account in the "New outlook".

I suspect this is the root cause... What a mess this ç"*%" piece of software is !
It seems that trying to connect your mailbox using this crap will then cause trouble for autodiscover...

Kind regards
Sébastien Riccio System & Network Admin https://swisscenter.com
Derek Curtis Replied
11/24/2025 at 6:45 AM
Employee Post
Thought I replied to this over the weekend, Sebastien. Thanks for posting the workaround. 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
We are having issues with one user receiving emails dated the day before the actual day. Always received at midnight desopite the headers and logs saying otherwise....
Derek Curtis Replied
11/24/2025 at 9:47 AM
Employee Post
Hey, Brian. Glad we have a ticket going on this. 

Yeah, that's an interesting one: as you say, the logs and headers show the proper day/time but they're displayed improperly in webmail. Will be a fun one to figure out :). 
Derek Curtis COO SmarterTools Inc. www.smartertools.com
Yeah and outlook MAPI as well.

So the wrong date and time is displayed both on the server and in the client..... and thats pretty weird.
Sabatino Replied
11/25/2025 at 3:21 AM
They updated 6 hours ago. (Italian night)
Everything seems to be working fine.
Sabatino Traini Chief Information Officer Genial s.r.l. Martinsicuro - Italy
Gabriele Maoret - SERSIS Replied
11/25/2025 at 4:24 AM
5 days of 9455, no problems reported so far
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)
Seeing a shitload of these now on 9455. Today is the 25th and all 26th email are received at 00:00 (midnight).
Gabriele Maoret - SERSIS Replied
11/25/2025 at 5:54 AM
Sorry, Brian, but we haven't seen or received any reports of this type of issue so far...

Everything seems to be working fine here (on 6 different SmarterMail servers, 5 on different versions of Windows Server, and 1 on Debian Linux 12...)

🤷‍♂️
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)
Yeah. Its pretty weird... only one user affected on the domain.

Downgraded to 9420 to see if it gives a different result.
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