On 28/10/24 20:07, Peter Ajamian via Postfix-users wrote:
On 28/10/24 20:02, Wesley wrote:
That VM provider Crunchbits blocks all traffic to external ports of
25, 587, 465, 2525 etc. under this case how the customer can access my
mailserver via SMTP for submissions?
Postfix can listen on literally *any* port, so long as it's the same
port the client is trying to send to. Just pick a port that they
*don't* block and use that.
Also, from https://crunchbits.com/vds
Do you open e-mail ports?
Due to abuse, mail ports are blocked by default. We may open them on a
per-customer basis upon request.
So I would recommend that your customer ask them to unblock 465 or 587,
but barring that just use a different port.
Peter
_______________________________________________
Postfix-users mailing list -- postfix-users@postfix.org
To unsubscribe send an email to postfix-users-le...@postfix.org
