Hello, when a sender is sending a message with 28MB attachment to one of my mailcow mailbox, the sender receives an error message:
552 5.3.4 Error: message file too big
I checked the Docs to attachment size.
nano extra.cf and added the line
message_size_limit = 240000000 which should be 240MB and which should overwrite permanently the line of
message_size_limit = 104857600 to the new value.
I restarted postfix with
docker-compose restart postfix-mailcow
It is still not working and the same error occurs!
I don’t know why, because even with the default value of 104MB (=104857600bytes) it should be more than enough space to add an attachment with 28MB and include the envelop too.
What do I miss?