Let's Encrypt challenge token exchange test - Connection refused

[Manuel]

Hi poste.io team,

I’m really impressed by your product and thinking about buying the PRO version. Currently testing your free version but I’m facing on issue with Let’s Encrypt challenge toke test in server status menu.

The mailserver is runnig on a different server than my nginx proxy. Both are sharing a smb share hosting the .well-known directory. Both containers can write to the directory but the test is failing with connection refused. I’m using:

HTTPS=OFF

HTTP_PORT=8080

HTTPS_PORT=8443

Why is the test failing and how does it work? Is there any log file I can check?
Many thanks in advance,

Manuel

[SH]

What do you mean with The mailserver is runnig on a different server than my nginx proxy. exactly?

Thing is that LE needs to use port 80 to work properly

[Henry Cumbicus Rivera]

Hello, I need to configure the post.io website with the following ports:
80 -> 8080
443 -> 4433
I can do it?