iredmail increase mail attachment size

Default mail attachment size in iredmail is 10 MB. To increase mail attachment size, login to server as user root, run following commands

Here 104857600 is 100 MB in bytes (100 * 1024 * 1024). Change this as required. Sending very large file using mail attachment is not recommended, it is better use file sharing services like Google Drive, Dropbox, Microsoft OneDrive or another file hosting service for sharing large files.

Now edit php.ini file

Change value for 3 of the following settings. It can be anything above 100 MB or whatever attachment size you want to use.

Restart php-fpm

Edit roundcube configuration file

Set value for

Edit Nginx config file

Set value for

restart nginx

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