SMTP 550 no relay for users in same domain

Issue #792 closed
Philipp Kayser created an issue

We’re using Exchange in front of Poste. Poste just received all unknown mailboxes relayed from exchange.

If i want to send a mail back from poste to same mail domain used on exchange I receive SMTP 550 Error: no such user

Smarthost is enabled

Comments (5)

  1. Philipp Kayser reporter

    Is there a possibility to relay unknown mailboxes as well?

    With postfix it will work but with dovecot I don’t know

  2. SH repo owner

    Yes it is desired behaviour. If poste has defined that domain in database it will not look nor deliver elsewhere and will try to deliver localy only (smarthost will not be used). To do this kind of wizardry it would require routing customization in code.

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