connection problem between E.F.A and Kerio

[pbx-ramdas]

Hello,

I just started to use E.F.A as gateway. My mailserver is Kerio Connect. I follow the steps mention in the wiki of E.F.A to install E.F.A on a clean Centos 6.9 installation. That was easy enough and I have E.F.A running.

I gonna use E.F.A only to filter inbound mails. The hostname is efa3024 and FQDN is efa3024.my-domain.com. My Kerio mailserver (kc920-01.my-domain.com) handle mails for different domains.

For the domain test-my-domain.com I have point the MX records to the E.F.A. gateway. The gateway is also receiving mails that are sent to system@test-my-domain.com and are proces and filter by the gateway as it should.

The problem is that for some reason, the gateway can't send the mails to Kerio mailserver. If I look at the logs in /var/log/maillog on the E.F.A gateway, I see that the connection is being time out.

Sep 10 12:52:47 efa3024 postfix/qmgr[17546]: 9B8A85809BD: from=<root@efa3024.my-domain.com>, size=18717, nrcpt=1 (queue active)
Sep 10 12:52:47 efa3024 postfix/error[14782]: 9B8A85809BD: to=<system@my-domain.com>, relay=none, delay=2.9, delays=2.9/0/0/0, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to kc920-01.my-domain.com[xx.xx.xx.xx]:25: Connection timed out)
Sep 10 12:54:35 efa3024 postfix/pickup[13725]: 09B745809BF: uid=0 from=<root@efa3024.my-domain.com>
Sep 10 12:54:35 efa3024 postfix/cleanup[15079]: 09B745809BF: hold: header Received: by efa3024.my-domain.com (Postfix, from userid 0)??id 09B745809BF; Sun, 10 Sep 2017 12:54:35 +0200 (CEST) from local; from=<root@efa3024.my-domain.com>
Sep 10 12:54:35 efa3024 postfix/cleanup[15079]: 09B745809BF: message-id=<20170910105435.09B745809BF@efa3024.my-domain.com>
Sep 10 12:54:36 efa3024 postfix/qmgr[17546]: 88CA45809C0: from=<root@efa3024.my-domain.com>, size=586, nrcpt=1 (queue active)
Sep 10 12:54:36 efa3024 postfix/error[15086]: 88CA45809C0: to=<system@my-domain.com>, relay=none, delay=1.1, delays=1/0.02/0/0.01, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to kc920-01.my-domain.com[xx.xx.xx.xx]:25: Connection timed out)

I do not why the connection timed out. The Kerio mailserver is working, I do not have problem receiving mails from other mailservers.
Can someone point me to the right direction how to solve this problem.

Thank you very much.

Best regards.
PBX-Ramdas

[budy]

Hi,

this really looks like a network problem. Are the Kerio and eFA in the same network? If yes, then I'd check the firewall settings on the Kerio host. Maybe it's blocking SMPTfrom the eFA.

Cheers,
budy

[pdwalker]

What budy said.

The error is right here:

connect to kc920-01.my-domain.com[xx.xx.xx.xx]:25: Connection timed out

Your kerio server isn't taking calls from your efa server.

Sort that out and I bet things will start working.

[pbx-ramdas]

Sorry for the late reply.
Thank you from pointing me to the right direction. The provider of the VPS was blocking all mail port.
Now EFA is making connection with my mailserver.