I have my postfix authenticate users before accepting mail for non-local
delivery. Till now, users can connect to port 25 and 465 (smtps) use
STARTTLS and authenticate.
But, I stumbled upon submission port 587 which is not reserved - it
appeas - for a protocol but for a use?
I'd like to
Erik Norgaard wrote:
Hi:
I have my postfix authenticate users before accepting mail for non-local
delivery. Till now, users can connect to port 25 and 465 (smtps) use
STARTTLS and authenticate.
But, I stumbled upon submission port 587 which is not reserved - it
appeas - for a protocol but