Date: Wed, 14 Jan 2009 08:51:59 +0100 (CET) From: Pieter Donche <Pieter.Donche@ua.ac.be> To: Mel <fbsd.questions@rachie.is-a-geek.net> Cc: "mail.list freebsd-questions" <freebsd-questions@freebsd.org> Subject: Re: receiving mail Message-ID: <Pine.GSO.4.63.0901140844360.850@hmacs.cmi.ua.ac.be> In-Reply-To: <200901131429.07667.fbsd.questions@rachie.is-a-geek.net> References: <Pine.GSO.4.63.0901132255420.9369@hmacs.cmi.ua.ac.be> <200901131429.07667.fbsd.questions@rachie.is-a-geek.net>
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on host1: $ host -t MX macos.cmi.ua.ac.be returns no answer This is the same as with another host on the same subnet, also in the same zone and on the same switch... and which does receive a sent mail --- But, when I try from host1 $ telnet host2.domain.topdom 25 Trying 143.129.75.1... telnet: Unable to connect to remote host: Connection refused Op host2.domain.topdom I see sendmail is running: host2: $ ps -jaxw | grep sendm smmsp 816 1 816 816 0 Is ?? 0:00.02 sendmail: Queue runner@00:30:00 for /var/spool/clientmqueue (sendmail) root 812 1 812 812 0 Ss ?? 0:00.01 sendmail: accepting connections (sendmail) What's wrong? Why does this not work out of the box ?? On Tue, 13 Jan 2009, Mel wrote: > On Tuesday 13 January 2009 13:20:33 Pieter Donche wrote: > >> 'Returned mail: see transcript for details": >> >> ----- The following addresses had permanent fatal errors ----- >> <user@host2.domain.topdom> >> >> ----- Transcript of session follows ----- >> 550 5.1.2 <user@host2.domain.topdom>... Host unknown (Name server: >> mailhost.domain.topdom: host not found) >> ------------- >> >> host1 and host2 are both behind a firewall, but they are in the same >> zone (so firewall rules do not apply), both are even connected to same >> switch and their IPs are in the same subnet. >> Both have fixed IP address (not DHCP) >> >> mailhost.domain.topdom does not exist in DNS, but host1 can send >> mail to other mailservers all over the world. > > MX record for host2.domain.topdom resolves to an unknown > mailhost.domain.topdom. > See: host -t MX host2.domain.topdom on host1.domain.topdom. > > -- > Mel > > Problem with today's modular software: they start with the modules > and never get to the software part. >
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