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Small and medium business | Business Central, N...
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SMTP Specific User Email Account has stopped working

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Posted on by 911

As of this week, my Business Central SMTP Specific User Email Account has stopped working. This was definitely working before this week.
The error it reports is: 'Cannot connect to server....'

If I use the exact same SMTP settings in C# .NET it works fine.

If I use another SMTP Email Account in BC that is configured to use a different server, in this case a GMail Server URL with a secure connection it works. The one that's stopped working has secure connection turned off.

Has anything changed regarding SMTP emailing? I noticed that the version below has just been deployed.

Version: GB Business Central 20.5 (Platform 20.0.45448.46783 + Application 20.5.45456.45681)

In the BC 'Email Outbox' page, when I click the 'Investigate Error' button it reports:

"SMTP Connector Impl."(CodeUnit 4513).Send - Email - SMTP Connector by Microsoft
"Send Email"(CodeUnit 8890).OnRun(Trigger) line 5 - System Application by Microsoft
"Email Dispatcher"(CodeUnit 8888).OnRun(Trigger) line 30 - System Application by Microsoft
"Email Impl"(CodeUnit 8900).Send line 41 - System Application by Microsoft
"Email Impl"(CodeUnit 8900).Send line 4 - System Application by Microsoft
Email(CodeUnit 8901).Send line 2 - System Application by Microsoft
"Email Test Mail"(CodeUnit 8887).OnRun(Trigger) line 35 - System Application by Microsoft

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  • Suggested answer
    Andy Sather Profile Picture
    Microsoft Employee on at

    Hello Nick - Can you update the App Password on the Gmail account with the issue?  You would use that app password as the password on the email setup in BC.  To confirm it works you can then send a Test email after the password is updated in BC.

    support.google.com/.../185833

  • Nick Webb Profile Picture
    911 on at

    Thanks for your response. I probably didn't explain it very well but the GMail account is working fine the one that wasn't working wasn't GMail, it was another provider called AutoMailer.

    Anyway, inexplicably, it all started working the following day with no changes. Go figure? Maybe it just doesn't like Thursdays? Only joking. Thanks anyway.

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