How to change maximum attachment size for Plesk Premium Email on CentOS/RedHat?

Question

How to change maximum attachment size for Plesk Premium Email on CentOS/RedHat?

Answer

Via Plesk panel:

1. Log in to Plesk
2. Go to Tools & Settings > PHP Settings and click the "by OS vendor FastCGI application" handler
3. Switch to the php.ini tab and increase the "post_max_size" and "upload_max_filesize" parameter values. Press OK to apply the setting.

Via command line:

1. Connect to the server using SSH.

2. Backup the original file /etc/php.ini:
   

   # cp /etc/php.ini{,_backup}

3. Increase the following options in /etc/php.ini. For example, to allow attachment of files with maximum size of 32 MB:

   CONFIG_TEXT: upload_max_filesize = 32M
   post_max_size = 34M

Note: if you don't have root access to Plesk via SSH, contact your hosting provider regarding the issue