palermuke Posted May 21, 2014 Share Posted May 21, 2014 (edited) A customer registered and I got all his email returned as "undelivered mail returned to sender" from MAILER-DAEMON(including his initial emaiL with his password- Blame on this)After long time I realized the problem was the lenght of the email string:[email protected] OK[email protected] OK[email protected] OK[email protected] "undelivered mail returned to sender"[email protected] "undelivered mail returned to sender"I dont find any post with this problem. May be from my hosting? I just dont have any clue about it, Edited May 21, 2014 by palermuke (see edit history) Link to comment Share on other sites More sharing options...
palermuke Posted May 21, 2014 Author Share Posted May 21, 2014 For the email up there, I got this txt attached [...] Final-Recipient: rfc822; [email protected] Action: failed Status: 5.1.1 Remote-MTA: dns; mail.fakemailgenerator.com Diagnostic-Code: smtp; 550 5.1.1 <[email protected]>: Recipient address rejected: User unknown Link to comment Share on other sites More sharing options...
palermuke Posted May 26, 2014 Author Share Posted May 26, 2014 The server reject the message saying "user unknow" but this server (fakemailgenerator.com) accepts all the addresses.Anyone knows what parameter can be wrong? Link to comment Share on other sites More sharing options...
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