On 15/08/23 12:15, Jon Smart via Postfix-users wrote:
I have disabled port 587/465 to be accessed publicly.
These are the submission and submissions ports, for user submission of mail.
but port 25 must be open to internet for MTA communications.
Port 25 is for MX to MX communication, for a submission host, or some other type of relay to push mail to your MTA on teh public internet.
My question is, can external users access port 25 for smtp auth and send mail then?
This is a bad idea for several reasons. If you want submission use ports 465 and/or 587 as they are intended. Don't try to use a service that is meant for a different purpose for this.
Peter _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
