Unable to send email on a Plesk server: Message size exceeds server limit

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  Silvio Fei July 25, 2019 14:30

  Hello,

  I tried to change this parameter but I'm still having this problem. What else could I try? Maybe do I have to reboot any service after change?

  This is my situation:

  • Roundcube says limit is set to 32 MB
  • Checked /etc/psa-webmail/roundcube/php.ini and i have this 2 following parameters: "post_max_size = 33M" and "upload_max_filesize = 32M"
  • In Tools & Settings > Mail Server Settings > Maximum message size is set to 35000 KB

  I can't figure how to solve this issue.

  Thank you,
  Silvio

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  Nikita Nikushkin July 31, 2019 04:30

  Hello @Silvio Fei,

  The "Maximum message size" directive at the "Plesk > Tools & Settings > Mail Server Settings" page changes the "message_size_limit" in the Postfix file:

  # cat /etc/postfix/main.cf | grep message_size_limit
  
  message_size_limit = 1024000

  Switching this value in Plesk reload/restart all required services - you can see it in the "/var/log/messages" file:

  # tail -fn0 /var/log/messages
  
  systemd: Reloaded Postfix Mail Transport Agent.
  systemd: Stopping Dovecot IMAP/POP3 email server...
  systemd: Started Dovecot IMAP/POP3 email server.
  systemd: Starting Dovecot IMAP/POP3 email server...
  systemd: Stopping Plesk mail filter service for Postfix...
  systemd: Started Plesk mail filter service for Postfix.
  systemd: Starting Plesk mail filter service for Postfix...
  systemd: Reloaded Postfix Mail Transport Agent.

  So, no additional actions are required here

  Maybe an email you try to send still exceeds the limits you set up? Try to increase them even more

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  Silvio Fei August 12, 2019 15:45 (Edited August 12, 2019 15:50)

  Hi Nikita,

  I tried your solution and now this is the situation:

   

      # cat /etc/postfix/main.cf | grep -i message_size_limit
      message_size_limit = 35840000
  
  
  then I run this command:

   

      sudo service postfix restart

   

  But I still have limit error when I try to attach 10Mb file within roundcube client.

   

  There is anything else I can try?

  P.S. For next time... how do you format blockquote in this ticket system? :P

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  Alisa Kasyanova August 13, 2019 09:32

  @Silvio Fei
  You have mentioned that "Roundcube says limit is set to 32 MB", do you mean this parameter?

  # cat /etc/psa-webmail/roundcube/php.ini | grep memory_limit
  memory_limit = 64M

  Check the /var/log/maillog, it may contain the more detailed errors, and if it does - try to search for other KB articles using these error.
  If you still cannot figure out the reason for such beahviour, feel free to submit a request to support as per https://support.plesk.com/hc/en-us/articles/213608509-How-to-submit-a-request-to-Plesk-support-

  > how do you format blockquote in this ticket system?
  When you writing a comment here, there is a small paragraph icon on the top left of the comment editor, press it and select the "code" style :)

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  Shokhrukh February 28, 2020 06:20

  Hi everybody, can someone help me with "Message size", I'm going to up the size but I can't, I already read the similar topics but no result, I still getting:

   

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  Denis Bykov March 11, 2020 16:01

  @Shokhrukh
  If none of the suggestions, mentioned in this thread, helped, I suggest contacting regular Plesk support for further assistance.

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