Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

How to force MTA to send emails with STARTTLS on port 587?

Hello,

I'm in the process of setting up my own mail server and I can receive emails without a problem but egress is blocked on SMTP port 25 by my ISP:

Jun 27 02:05:01 localhost postfix/smtp[12768]: connect to alt2.gmail-smtp-in.l.google.com[142.250.152.26]:25: Connection timed out

I have created a NAT rule to re-route port 25 to either port 465 or 587 but it doesn't seem to make a difference as I still get the same error reported above, even though I see this NAT rule's usage counter increasing.

Is there a way to force XG Firewall's MTA to always send mail using a port other than 25, say enforcing the use of STARTTLS on port 587?

Thanks in advance.



This thread was automatically locked due to age.