This is a discussion on Re: Slow connection response within the mailing.postfix.users forums, part of the Mail Servers and Related category; Jeremy Bowen wrote: > > I can happily ping external addresses from the mail-server machine, if > that helps. &...
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Jeremy Bowen wrote:
> > I can happily ping external addresses from the mail-server machine, if > that helps. > What you see from within your firewall is not a very good indicator of what your firewall looks like to external entities. What about inbound? Try ssh'ing in somewhere and then pinging your firewall / mailserver IP, then just for kicks open an smtp connection and tcpdump it. srs |