I'm having an issue that I believe is coming from Postfix. I am sending mail
to an address which contains special characters. Those characters aid me in
routing the mail but unfortunately it seems to be rejected before being
relayed. The format is as follows, a block of text followed by an "="
followed by more text and a number, followed by a "|" and then numbers @ the
domain.com ie: "text=option1| ... at address dot com".
When sending from Gmail for instance I get the following error:
Technical details of permanent failure:
Google tried to deliver your message, but it was rejected by the recipient
domain. We recommend contacting the other email provider for further
information about the cause of this error. The error that the other server
returned was: 501 501 5.1.3 Bad recipient address syntax (state 14).
Also, I am seeing the following error in Postfix:
*'501 5.1.3 Bad recipient address syntax' *
Any suggestions or assistance would be greatly appreciated.
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