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SMTP Error every time i try to send an email
RE: SMTP Error every time i try to send an email
(09-20-2018, 10:37 AM)wormsunited Wrote: Hello guys!

I am trying to fix an issue over the control panel of Sentora and tried many times to search for a solution, either online, either in this forum but without any luck. I hope you guys can help me solve this issue.

So i had an account lets say in server A and then, i deleted that account from Sentora control panel, created a new server B with the account there. Now if i want to send an email from server A to server B to that domain name i get an error on server A saying this:

SMTP Error: The following recipients failed: : Recipient address rejected: User unknown in virtual mailbox table

So as you see i get this error, every time i try to send an email.

Any idea how to fix this issue? Thanks in advance guys, any help is much appreciated!


I was looking into this a week or two ago and came to the conclusion that it's something to do with entries remaining in one (or more) of the database tables. IIRC, Postfix is using one of the tables created by Sentora to determine the sending route for emails - if it sees a domain in the table, it thinks it's still local, but then can't find the actual mailbox to send to... or it was something along those lines.

Go to your Sentora database, into the sentora_postfix database, to the domain table and see if you can see the domain that you have now moved away to another server listed. If so, does it have 1 in the active column? If so, try changing it to a 0, then restart the postfix service and see if you can send the mail now.

Thanks given by: wormsunited

Messages In This Thread
RE: SMTP Error every time i try to send an email - by fearworks - 09-21-2018, 04:17 AM

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