Mail-receiver relay access denied

[Ethsim2 (Ethan)]

@Discourse

To                         Action      From
--                         ------      ----
80                         ALLOW IN    Anywhere
443                        ALLOW IN    Anywhere
22                         ALLOW IN    Anywhere
80 (v6)                    ALLOW IN    Anywhere (v6)
443 (v6)                   ALLOW IN    Anywhere (v6)
22 (v6)                    ALLOW IN    Anywhere (v6)

should i need to additionally allow port 25 for mail-receiver to work properly.

In this case, working properly would be inbound emails showing in .\launcher logs mail-receiver reaching the discourse admin UI