==== Provide required information ====
- iRedMail version and backend (LDAP/MySQL/PGSQL): 0.8.0
- Linux/BSD distribution name and version: Centos 5.x
- Any related log? Log is helpful for troubleshooting.
====

Hi,

I have a Barracuda 400 in front of iredmail server, I insert this appliance just few days ago.

I see a long queue messages not delivered from Barracuda to Iredmail server.
According to Barracuda support, I try to telnet iredmail server on port 25 from Barracuda itself and I see no response.
But if I try to telnet port 25 from other workstation server mail response OK (220).
And most of all others domains not filtered from barracuda, receive mails correctly.

Maybe Iredmail are blacklisted the Barracuda?
On what basis?
How can troubleshoot this behaviour?
Maybe iredmail need to whitelist the Barracuda?

Thanks in advance...