Date: Thu, 6 Dec 2001 17:19:04 -0600 From: Anthony Kim <niceshorts@yahoo.com> To: Dave Atkins <dave@atkinshome.com> Cc: freebsd-questions@freebsd.org Subject: Re: sendmail times out connecting to local mailserver Message-ID: <20011206231904.GC549@boethius.telocity.com> In-Reply-To: <002801c17e19$766cd290$6700a8c0@atkinshome.com> References: <20011206034057.GB3737@boethius.telocity.com> <002801c17e19$766cd290$6700a8c0@atkinshome.com>
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On Wed, Dec 05, 2001, Dave Atkins wrote: > Thanks, > > Yes, there is a PIX in front of these servers, but they are on > the same subnet with an Alteon switch. I have been debugging > from another freebsd box at my desk which uses a backdoor T1 to > the datacenter. It seems as long as we are working on the > private network, the PIX would not be involved, but I'm not > sure. Could the Alteon be dropping those packets too? I have no idea about the Alteon. But I do think that the PIX can be involved if your mail servers are using DNS, which is default behavior, attempting to deliver to the MX host, and if the MX host IP is a public one, then yes, the firewall will be involved in some way shape or form. > I have tried to simplify things by using our main mail server > as a relay-which works for other servers in the data center > (which use windows-based mail servers, not sendmail). But > still, no luck with sendmail. The relay server sometimes gets > the email, after it sits in the queue for many retries. > > telnet on port25 works, but I don't know how to test the packet > level stuff This is odd - I think there is a misconfiguration somewhere if it sometimes works and sometimes does not. I'm going to reply to your next email. Cheers, take it one step at a time. "There's always time for beer." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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