Postfix Help
From Free Knowledge Base- The DUCK Project: information for everyone
Errors and Common Configuration Parameters
Examples and Help
queue file size limit exceeded
By default, Postfix limits the size of an email, restricting the recipient from receiving any email size greater than the default limit. The sender of the email will receive a bounced email with an error.
Remote host said: 552 5.3.4 Error: message file too big
This default setting can be modified by adding the following line to the bottom of: /etc/postfix/main.cf
message_size_limit = 0
The zero indicates NO LIMIT. You may wish to set a limit that is reasonable.
Once you have added the above line and saved the file, you will then need to reload postfix.
postfix reload