KB Knowledge Base
How To Increase The Attachment Size In Postfix

Article By BIP Admin


Attachment size

Postfix by default restrict attachment size to approx 10MB i.e. 10240000 bytes.

You can check attachment size it using following command:
postconf | grep message_size_limit

To change attachment size to say 50 MB, run a command like:
postconf -e message_size_limit=52428800

Note: If you are running a mail server with SMTP/IMAP access on it, you only need to change postfix attachment size setting. I spent 20 min. debugging dovecot to increase attachment size, just to realize that above change in postfix config was all that was needed!

Tags: , , , ,

Spin up a VPS server in no time flat

Simple setup. Full root access. Straightforward pricing.


Leave a Reply