All ports are reachable but getting timeout

Cem

Hello,

I set up a pfsense + haproxy + mailcow. Everyting looks good, I can send email with webmail but I cannot connect to server with email client.

I have tested email serveri mxtoolbox. It gives following output ;

Connecting to server-ip
SendSMTPCommand: Timeout waiting for response after 15 seconds.
LookupServer 15556ms

In the other hand the testing tool also give following result ;

SMTP Connection Time 0 seconds - Good on Connection time.

Thank you for your help.

piperino

check pfsense and mailcow logs (postfix, dovecot etc.)
not much more to say with information you’ve provided.

Cem

piperino thank you for your response, I think, I figured it out. HAProxy does not make connection with the backend on the specified ports. I will try to fix it. If someone knows how to fix it please, update.

maddler

Cem anything in the HAProxy logs? Or it could be for a number of different reasons.

Cem

maddler Maddler, thank you!

Now it works for the non-ssl connection, so it passes the traffic to back-end server but I am not able to pass the SSL traffic to back-end server yet.

On the previous configuration when I created the topic the configuration had errore so it was not passing traffic to back-end.

I will update the thread again when I am done or half/done 🙂

Cem

I finally set up the email server behind the HAProxy. I have created backend and frontend for each service. In front-End servers I have selected tcp for non-SSL services and ssl/https (TCP Mode) for the services which requires SSL Connection moreover for the SSL connection I have also selected SSL offloading. In SSL Offloading section I have selected certificate which I already created through pfsense. If there are additional certificates I added them too.

Just one more thing to go.

I have added an Action on “Default backend, access control lists and actions” and selected which supplies the same service as back-end and that was it.

I have stopped the HA Proxy and Start the HA proxy every time when I make changes.

I want to thank @piperino @maddler for your helps.

maddler

I’ve done literally nothing, you’re welcome 🙂