External/Internal SMTP Port

[Thiago]

Hi,
why (on proxmox mail gateway 5.0, at least) the External SMTP Port is configured as 26, and Internal SMTP as 25? Isnt the inverse?

Thiago

 

[dietmar]

why (on proxmox mail gateway 5.0, at least) the External SMTP Port is configured as 26, and Internal SMTP as 25? Isnt the inverse?

This is configurable, so you can do it like you want.

 

[dietmar]

why? because you usually have a firewall that does some kind of NAT, so you can easily listen on port 25 and redirect that to port 26. So this is just more convenient in most setups.

 

[Thiago]

So, the IN rules are applied when using the External Port, isnt? In my view, excuse me if I'm wrong, External Port should be 25, and Internal, 26.

 

[Thiago]

Ok, I understood now! Thanks!

why? because you usually have a firewall that does some kind of NAT, so you can easily listen on port 25 and redirect that to port 26. So this is just more convenient in most setups.

,

 

[dietmar]

So, the IN rules are applied when using the External Port, isnt? In my view, excuse me if I'm wrong, External Port should be 25, and Internal, 26.

Simply to configure if you want it that way.

 

[dietmar]

OK, we finally decided to change that in the next version. Seems most people expect the external port on 25.
So please verify this when you update the BETA version.

 

[Thiago]

Hi,
thanks, @dietmar; now, waiting for pmg-api 5.0.50+

Best regards,
Thiago