Date: Tue, 02 Mar 2004 18:27:20 -0600 From: "Kevin D. Kinsey, DaleCo, S.P." <kdk@daleco.biz> To: Justin Brody <brody@math.umd.edu> Cc: freebsd-questions@freebsd.org Subject: Re: sendmail: Operation timed out with Message-ID: <40452668.3010106@daleco.biz> In-Reply-To: <Pine.GSO.4.58.0403021854110.3965@archimedes.math.umd.edu> References: <Pine.GSO.4.58.0403021510220.2784@archimedes.math.umd.edu> <20040302205759.GB21233@happy-idiot-talk.infracaninophile.co.uk> <Pine.GSO.4.58.0403021706410.2784@archimedes.math.umd.edu> <20040302223734.GA81585@happy-idiot-talk.infracaninophile.co.uk> <Pine.GSO.4.58.0403021854110.3965@archimedes.math.umd.edu>
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Justin Brody wrote: >On Tue, 2 Mar 2004, Matthew Seaman wrote: >On Tue, Mar 02, 2004 at 05:23:52PM -0500, Justin Brody wrote: > > >>>Here's a bit from /var/log/maillog: >>>Mar 2 16:40:39 aleph sendmail[327]: i1SGr1hh004059: >>>to=<brody@math.umd.edu>, de >>>lay=3+04:47:38, xdelay=00:00:00, mailer=esmtp, pri=8130413, >>>relay=math.umd.edu., >>> dsn=4.0.0, stat=Deferred: Operation timed out with math.umd.edu. >>>Mar 2 16:40:39 aleph sendmail[327]: i1S4wehh000450: >>>to=<brody@math.umd.edu>, ctladdr=<justin@aleph.none.org> (1001/1001), delay=3+16:41:59, >>>xdelay=00:00:00, mailer=esmtp, pri=10290322, relay=math.umd.edu., dsn=4.0.0, stat=Deferred: >>>Operation timed out with math.umd.edu. >>> >>>Don't know if that says anything new. I would wonder if it's some sort of >>>lookup based on "ctladdr", but I get the same error if use "-f >>>brody@math.umd.edu" which does show up in that field. >>> >>>sendmail -q -v reports: >>> >>>aleph# sendmail -q -v >>> >>>Running /var/spool/mqueue/i22M7pof000364 (sequence 1 of 17) >>><brody@math.umd.edu>... Connecting to math.umd.edu. via esmtp... >>><brody@math.umd.edu>... Deferred: Operation timed out with math.umd.edu. >>> >>>Running /var/spool/mqueue/i22KDkof000227 (sequence 2 of 17) >>><jdbrody@wam.umd.edu>... Connecting to po1.wam.umd.edu. via esmtp.. >>><jdbrody@wam.umd.edu>... Connecting to po2.wam.umd.edu. via esmtp... >>><jdbrody@wam.umd.edu>... Connecting to po0.wam.umd.edu. via esmtp... >>><jdbrody@wam.umd.edu>... Deferred: Operation timed out with po0.wam.umd.edu. >>> >>>etc... >>> >>> >>Bah! All that says is connection timeout. No indication of *why*. >>You're not even getting the SMTP banner there. I suspect it's >>probably something to do with an administrative descision on behalf of >>UMD admins -- perhaps they reject connections to hosts in DUL block >>lists. >> >> >>>I'll give a shot at changing my domain name - what should I use? I'm a >>>bit too poor to actually buy one :) Should I just change to use my ISP's >>>domain? >>> >>> >>Yes -- do a reverse lookup on your IP number and use that name in your >>sendmail config. It may not look pretty, but it should let you see if >>that is the problem. >> >>The other thing to do is forward all of your e-mail via your ISP's >>smart host. As you are probably expected to do. >> >> Cheers, >> >> Matthew >> >>-- >>Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks >> >>Well, I tried forwarding to my "Smart relay host" and get the same error >>message, with "via relay..." appended. On the other hand, a reverse DNS >>lookup doesn't work - perhaps this is my entire problem? I'm not sure how >>to fix it if so! >> >>Here's some output: >> >>aleph# ifconfig rl0 >>rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 >> inet6 fe80::2e0:4cff:fe98:36fa%rl0 prefixlen 64 scopeid 0x1 >> inet 192.168.0.197 netmask 0xffffff00 broadcast 192.168.0.255 >> ether 00:e0:4c:98:36:fa >> media: Ethernet autoselect (100baseTX <full-duplex>) >> status: active >>aleph# nslookup 192.168.0.197 >>Server: ns1.dc.cox.net >>Address: 68.100.16.30 >> >>*** ns1.dc.cox.net can't find 192.168.0.197: Non-existent host/domain >>aleph# cat /etc/resolv.conf >>search dc.dc.cox.net >>nameserver 68.100.16.30 >>nameserver 68.100.16.25 >> >>I do have an entry in my /etc/hosts file: >>192.168.0.197 aleph.cox.net aleph >> >>But apparently it's not reading that. [the change to cox.net is just 5 >>minutes old, BTW]. >> >>Thanks again for the help! >> >> Hi Justin... Matthew meant "do a reverse lookup on your *public* IP number". (As you probably know, 192.168.x.x is an RFC 1918 private [non-routable] network address.) You can use nslookup for this, but supposedly it is (or is becoming) deprecated in favor of dig(1). However, I'm lazy, and just use host(1). :-D Based on your last email, I'm thinking you're at 129.2.56.21, which is archimedes.math.umd.edu.... But that doesn't agree with what you've written. What's the output of ifconfig? Kevin Kinsey DaleCo, S.P.
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