On Sat, Feb 11, 2012 at 3:21 AM, Kumar Krishna <krishnak5891 at gmail.com> wrote: > > >> > Yes, I did restarted postfix. >> > I ran tcpdump on the mail server while connecting to it from a >> > remote location and then analysed the dump file. It seems that the >> > server is working fine and offering STARTTLS, but the Cisco Router >> > en route is messing things up. >> > >> >> A normal router shouldn't interfere. Is this a PIX or ASA firewall? >> I haven't used one for a few years but you used to have to do a >> >> no fixup protocol smtp 25 >> >> to get them to pass things correctly. >> > > I believe it is a PIX or ASA firewall. In that case it is very likely to be the problem. -- Les Mikesell lesmikesell at gmail.com