In postfix main.cf set: message_size_limit = 200000000 The number is the max. allowed message size in bytes.
That thread doesn't exist in the file. I'm guess that means I have no limit. If I add "message_size_limit = 5000000" to the end of the long list (after "tls_random_source = dev:/dev/urandom"), it will limit emails to 5MB? Thanks.
Yes, this should work. Most likely there is already a limit set at the moment, as postfix uses default values in case a value is not set in main.cf. To get the current limit, run: postconf | grep message_size_limit
The more elegant way would be Code: postconf -e message_size_limit=5000000 postconf will add the setting or alter the existing one if it exists
