Date: Tue, 2 Mar 2004 20:11:36 -0500 (EST) From: Justin Brody <brody@math.umd.edu> To: "Kevin D. Kinsey, DaleCo, S.P." <kdk@daleco.biz> Cc: freebsd-questions@freebsd.org Subject: Re: sendmail: Operation timed out with Message-ID: <Pine.GSO.4.58.0403021935240.3965@archimedes.math.umd.edu> In-Reply-To: <40452668.3010106@daleco.biz> 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> <40452668.3010106@daleco.biz>
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Hi Kevin,
Thanks for the clarification. I don't have a public IP address, at least
as far as I know! I'm basically operating from behind a router that's
conencted to a cable modem. archimedes.math.umd.edu is the machine i'm
sending mail from, but this is through an SSH connection and only because
i'm not able to send it from my BSD box. Would this be my problem?
A couple pieces of information that might be relevant:
About a month ago, I was running the same FBSD version with the
same sendmail.cf from behind a different router connected to a different
cable modem and calling my box "cogito.none.org". This seemed to work
o.k.
I've tried adding "O HostsFilfe=/etc/hosts" to sendmail.cf which didn't
seem to help.
ifconfig says:
aleph# ifconfig
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
faith0: flags=8002<BROADCAST,MULTICAST> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet 127.0.0.1 netmask 0xff000000
ppp0: flags=8010<POINTOPOINT,MULTICAST> mtu 1500
Thanks again!
On Tue, 2 Mar 2004, Kevin D. Kinsey, DaleCo, S.P. wrote:
> 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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