Internal and incoming mail works, outbound fails

[jmg]

Scalix Ver 11.1.0.45 running on Linux RHES 4

I'm starting up a new installation, and have set up 3 users, two as Outlook clients, one as an Evolution client.

Sending and receiving between all internal clients works fine.
Incoming mail from outside the firewall reaches all the clients.
Webmail from outside the firewall can access a user's mailbox.

However, I can't send mail to the outside, messages eventually return to the clients as undeliverable with the following info:
"A mail transport failure occurred"
"554 Too many hops"
"x-scalix-Reason-Code: 5"

I must have checked and double-checked the external firewall settings a dozen times, can anyone point me in the right direction toward solving this?

Thanks,
Jim G

[dougp23]

Almost always this is due to a recursive forwarding loop being setup. For instance, let's say I have 2 accounts, doug@me.com, and doug2@me.com. Since I am going to be out of the office, I forward doug@me.com to doug2@me.com. But I have forgotten that I ALREADY forwaded doug2 to doug, so when you send a mail to doug, it goes to doug2 which forwards it to doug, and you get into this endless loop.

Check for mail forwarding, including your mailserver.

[jmg]

My problem turned out NOT to be a forwarding loop, but rather a problem with the network configuration. Your last comment "Check for mail forwarding, including your mail server" is what got me to examine the server setups.

Under the network configuration, the hostname entry has an alias parameter, and under the alias entry was a hosed up localhost.localdomain name. Fixing that got the server working.