Shrink large attachments automatically

Large attachments add up fast across a whole organization’s mailboxes, and asking employees to zip files themselves before sending is the kind of habit that never quite sticks. MSH Postfix Milter’s compress attachments action handles it automatically as messages pass through the server.

You set a size threshold, only attachments larger than that value get compressed, so small files are left alone and the action only does work where it actually saves space.

Skipping what is already compressed

Compressing an already-compressed file usually just wastes CPU time for no size benefit, so you can skip specific attachments by file name pattern, such as *.zip;*.tar.gz;*.bz2, or by content type, such as image/png; video/mp4. That keeps the action focused on the documents and exports that actually shrink, instead of reprocessing formats that will not get any smaller.

To learn more visit MSH Postfix Milter website.