Welcome to ACWN
An inside view
Hi Exim users, All important web sites and email providers have switched to encrypted email transfer. So now it is about time to block all unencrypted emails. If someone is still sending unencrypted emails is way behind and deserves to be block by your email server. I add this rule in the ACL called "acl_smtp_mail". These lines allow only encrypted connections.
drop !encrypted = * message = WARNING - No encrypted connection. log_message = WARNING - No encrypted connection from $sender_host_address.If you are not so brave and want to check out how it impacts your traffic you can replace the DROP command with a WARN. Use at your own risk!! Have fun!