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Knowledge Base

PHP mail() cannot send mail on Plesk server: The user user is not allowed to send email

 
clidomainsemailgomail

Symptoms

  • The server is set to Allow users and scripts to use Sendmail at Tools&Settings > Mail Server Settings
  • The subscription created is based on a Service Plan with Mail service disabled
  • Emails sent using the PHP mail() function are not delivered.

Cause

Plesk bug PPPM-12408. In the /var/log/maillogthe following error can be found:

Rejecting message: system user is not allowed to send mail

Resolution

As a workaround:

Click on a section to expand

Via GUI:

  1. Log in to Plesk
  2. Go to Domains > example.com > Mail tab > Mail settings 
  3. Check the Activate mail service on this domain option and click Apply
    1.JPG
  4. Uncheck  Activate mail service on this domain option and click OK
    2.JPG

Via CLI:

  1. Connect to the server via SSH
  2. Execute the following command to enable and disable mail service for domain:

    # plesk bin mail --create-service example.com && plesk bin mail --off example.com

For all domains:

  1. Connect to the server via SSH
  2. Create script phpmail.sh and start editing it:

    # vi /root/phpmail.sh

  3. Add the following content to it and save changes:

    #!/bin/bash
    echo "--------------" >> /tmp/event_handler.log
    /bin/date >> /tmp/event_handler.log
    /usr/bin/id >> /tmp/event_handler.log
    PLAN_NAME=$(plesk bin site --info ${NEW_DOMAIN_NAME} | egrep Subscription Information -A5 | egrep service plan | cut -d'"' -f2)
    MAIL_ACTIVE=$(plesk bin service_plan --info "$PLAN_NAME" | egrep Settings -A5 | egrep Mail | awk '{print $2}')
    echo "${NEW_DOMAIN_NAME} -> $PLAN_NAME / Mail Service = $MAIL_ACTIVE" >> /tmp/event_handler.log
    if [ "$MAIL_ACTIVE" == "false" ]; then
    echo "ACTION => Create service + switch off" >> /tmp/event_handler.log
    plesk bin mail --create-service ${NEW_DOMAIN_NAME}
    plesk bin mail --off ${NEW_DOMAIN_NAME}
    fi
    echo "--------------" >> /tmp/event_handler.log

  4. Make the script executable:

    # chmod +x /root/phpmail.sh

  5. Log in to Plesk
  6. Go to Tools&Settings > Event Manager > Add event handler and add the event as follows:event.JPG
  7. Click OK to save changes.
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