SMTP Error: 500 5.2.3 Line Too Long Issue

First of all, you must ACCEPT a malformed email AND then you can apply the fix to it

The event smtp_server_message_received is onlyt triggered once Kumo accepts a message

It can’t accept a message unless you override the line length first

So your code to apply check_fix_conformance does not even run

@optimistic-whale You are right. Thanks for the update

@optimistic-whale thank you for explaining that more clearly . Not sure why I was being misunderstood.