7429: Clients Unable to Send to Us: Barracuda / RSET

I need some assistance from the community.

I reported an issue on a ticket and it started with a single client. They were sending to us fine a week or so ago until I upgraded to the latest MAPI builds. Now I am on 7429.

Please check your SMTP logs for a single day if you have a lot of volume, search for "RSET"

Then once you have your log file open, CTRL+F in the browser to search and search for "Barracuda" and see if you have all inbound emails sent via a Barracuda gateway/anti-spam? server being RSET. We are not receiving any emails from anyone using Barracuda.

I checked my domain/IP and made sure we were not on any black lists. All looks good. So I am really concerned because my clients are eventually getting unable to deliver messages and we are not receiving important emails. People are getting frustrated.

Thanks for your help!

-Tim

Tim DeMeza Replied

5/5/2020 at 12:36 PM

I have a ticket open for this, but I now have confirmed at least 3 customers of mine cannot send us emails due to this issue. All are using a Barracuda appliance and during the send process issuing a RSET command and the email never comes through. Again, I am asking anyone else that may be able to help to confirm if this is just my server, or a larger issue. It is critical to me at this time.

Gabriele Maoret - SERSIS Replied

5/5/2020 at 1:06 PM

no reports of such an issue here...

Gabriele Maoret - Head of SysAdmins 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)

Tim DeMeza Replied

5/5/2020 at 1:19 PM

Thank you.

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