System Status Checks: Outgoing Mail (SMTP 587/postfix) is running but is not publicly accessible at port 587

[assistance_pls]

System Status Checks

Outgoing Mail (SMTP 587/postfix) is running but is not publicly accessible at my IP:587

How can I fix this error?

Thanks,

[schotty]

That port is closed.

look into how to use ufw. Here is the output of what I have setup on my mail server:

andrew@mx:~$ sudo ufw status verbose
Status: active
Logging: on (low)
Default: deny (incoming), allow (outgoing), disabled (routed)
New profiles: skip

To Action From

---

22 ALLOW IN Anywhere
53 ALLOW IN Anywhere
25/tcp ALLOW IN Anywhere
587 ALLOW IN Anywhere
993 ALLOW IN Anywhere
995 ALLOW IN Anywhere
4190/tcp ALLOW IN Anywhere
80 ALLOW IN Anywhere
443 ALLOW IN Anywhere
22 (v6) ALLOW IN Anywhere (v6)
53 (v6) ALLOW IN Anywhere (v6)
25/tcp (v6) ALLOW IN Anywhere (v6)
587 (v6) ALLOW IN Anywhere (v6)
993 (v6) ALLOW IN Anywhere (v6)
995 (v6) ALLOW IN Anywhere (v6)
4190/tcp (v6) ALLOW IN Anywhere (v6)
80 (v6) ALLOW IN Anywhere (v6)
443 (v6) ALLOW IN Anywhere (v6)

andrew@mx:~$

Generically speaking, you can do “sudo ufw allow PORTNUMBER”

[assistance_pls]

Excellente!!!