Mail Server Settings page is not accessible

Created:

2017-07-19 11:54:22 UTC

Modified:

2017-08-16 17:23:10 UTC

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Mail Server Settings page is not accessible

Applicable to:

  • Plesk for Linux

Symptoms

Attempt to access to server-wide mail settings on Home > Tools&Settings > Mail Server Settings fails with the error:

Internal error:

mailmng-server failed: Fatal error: plesk::mail::postfix::PostfixConfigurationError(/usr/sbin/postconf: fatal: invalid type field "smtpd_enforce_tls=no" in "-o smtpd_enforce_tls=no -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination -o smtpd_tls_security_level=may" )
Message mailmng-server failed: Fatal error: plesk::mail::postfix::PostfixConfigurationError(/usr/sbin/postconf: fatal: invalid type field "smtpd_enforce_tls=no" in "-o smtpd_enforce_tls=no -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,permit_sasl_authenticated,reject_unauth_destination -o smtpd_tls_security_level=may" )

Cause

Configuration file /etc/postfix/master.cf is corrupted or has been modified manually with incorrect syntax.

Resolution

Check that syntax for directives in /etc/postfix/master.cf configuration file is correct, for example there is no line breaks in the middle of start options for submission directive.

Note: It is not recommended to modify /etc/postfix/master.cf file manually because it can be overwritten by Plesk when some changes made in Home > Tools&Settings > Mail Server Settings
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