On 5/10/2009, Jim (j...@themailshack.com) wrote: > Just wrapping up this thread, it was a firewall issue after all, > unbeknownst to me, the mail server box itself had a firewall running, > separate from the main firewall box protecting my LAN. For some > reason at boot time the local firewall was blocking connections to > dovecot, but after restarting dovecot, all was well. I've shut down > the firewall on the local box, which should prevent this from > happening again in the future.
A basic firewall is not resource intensive, and I always set one up on any box I administer... especially since I always use fail2ban to lock out brute force attackers (requires a firewall)... I'd recommend re-enabling it and configuring it properly... not much effort, and is just one more layer of protection... -- Best regards, Charles