Unable to send mail: You are not allowed to use sendmail utility

Created:

2016-11-16 13:11:56 UTC

Modified:

2017-08-08 13:37:07 UTC

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Unable to send mail: You are not allowed to use sendmail utility

Applicable to:

  • Plesk 12.0 for Linux

Symptoms

It is not possible to send mail from specific domain, using Roundcube webmail. The following message is recorded into /usr/local/psa/var/log/maillog :

plesk sendmail[10067]: handlers_stderr: DATA REPLY:554:5.7.0 The message could not be sent. You are not allowed to use sendmail utility.
plesk sendmail[10067]: handlers_stderr: REJECT
plesk sendmail[10067]: REJECT during call 'limit-out' handler
postfix-local[10063]: Unable to forward original message. sendmail status: 100

The domain name contains upper-case characters.

Cause

The issue is recognized as a product bug with ID PPPM-1941 , fixed since Parallels Plesk 12.0.18 MU#33 .

Resolution

Install all Plesk Microupdates in order to have the issue resolved.

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