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unknownmailtransporterror [2016/03/23 12:12] (current)
yassine chaouche created
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 +\\
 +[[:​index|Home]] > [[:​computers|computers]] > [[:​mail|mail]] > [[:​postfix|postfix]] > [[UnknownMailTransportError|UnknownMailTransportError]] | [[:​about|About]]
 +
 +
 +There could be multiple origins for this error, you must check the log files for more clues. For example, looking at mail.log you would see something like this : 
 +
 +<​code>​
 +
 +Mar 23 11:06:34 messagerie postfix/​smtpd[6104]:​ connect from mta-gw11.infomaniak.ch[84.16.68.70]
 +Mar 23 11:06:34 messagerie postfix/​smtpd[6104]:​ 727691E92409:​ client=mta-gw11.infomaniak.ch[84.16.68.70]
 +Mar 23 11:06:34 messagerie postfix/​cleanup[7130]:​ 727691E92409:​ message-id=xxx@
 +Mar 23 11:06:34 messagerie postfix/​qmgr[3024]:​ 727691E92409:​ from=<​xxx@infomaniak.com>,​ size=4153, nrcpt=1 (queue active)
 +
 +
 +Mar 23 11:06:34 messagerie postfix/​pipe[7131]:​ fatal: get_service_attr:​ unknown username: spamd  <​------------
 +
 +
 +
 +Mar 23 11:06:34 messagerie postfix/​smtpd[6104]:​ disconnect from mta-gw11.infomaniak.ch[84.16.68.70]
 +Mar 23 11:06:35 messagerie postfix/​qmgr[3024]:​ warning: private/​spamassassin socket: malformed response
 +Mar 23 11:06:35 messagerie postfix/​qmgr[3024]:​ warning: transport spamassassin failure -- see a previous warning/​fatal/​panic logfile record for the problem description
 +Mar 23 11:06:35 messagerie postfix/​master[3016]:​ warning: process /​usr/​lib/​postfix/​pipe pid 7131 exit status 1
 +</​code>​
 +
 +5th line indicates that spamd is an unknown username. Does it exist on the system ? a quick grep on /etc/passwd showed that it didn'​t. The solution was just to create the spamd user with 
 +
 +<​code>​
 +adduser --system spamd
 +</​code>​
 +
 +Restart postfix, everything back to normal.
 +
 +----
 +
 +contact : [[http://​twitter.com/​ychaouche|@ychaouche]] yacinechaouche at yahoocom
  

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