On Mon, Jul 21, 1997 at 03:57:30PM -0400, Greg A. Woods wrote:

...

|------------------------- Failed addresses follow: ---------------------| <woods@weird.com> ... transport smtp: 550 '<jra@scfn.thpl.lib.fl.us>SIZE=2483' sender address target 'scfn.thpl.lib.fl.us' is not a valid domain (no MX record).

The error says exactly what it means. (FYI I've had it up to here with spam and I'm not accepting mail from anyone who can't get their DNS right.)

I dislike to have to correct hats, but... get a real mailer. Script started on Mon Jul 21 17:28:47 1997 bash$ ns Default Server: ns1.thpl.lib.fl.us Address: 204.198.80.2

set q=any scfn.thpl.lib.fl.us. Server: ns1.thpl.lib.fl.us Address: 204.198.80.2

scfn.thpl.lib.fl.us mailbox = bbrush.scfn.thpl.lib.fl.us text = contact.thpl.lib.fl.us scfn.thpl.lib.fl.us CPU = SPARCstation 20/51 OS = SunOS 4.1.4 scfn.thpl.lib.fl.us internet address = 204.198.80.3 thpl.lib.fl.us nameserver = ns1.thpl.lib.fl.us ns1.thpl.lib.fl.us internet address = 204.198.80.2

exit

script done on Mon Jul 21 17:29:13 1997

Your DNS is rather sparse of MX records. You might want to add at least the following as well:

thpl.LIB.fl.us. MX 1 scfn.thpl.lib.fl.us. scfn.thpl.LIB.fl.us. MX 1 scfn.thpl.lib.fl.us.

Either that or use a return address of <jra@ns1.thpl.lib.fl.us> (i.e. the "MAIL FROM:" address given in the SMTP envelope).

The return address you should have had was "jra@baylink.com". baylink.com MX's to scfn.thpl.lib.fl.us, which is an A record. $ ns -q=any baylink.com Server: ns1.thpl.lib.fl.us Address: 204.198.80.2 baylink.com origin = ns1.thpl.lib.fl.us mail addr = jra.scfn.thpl.lib.fl.us serial = 960502 refresh = 3600 (1 hour) retry = 300 (5 mins) expire = 3600000 (41 days 16 hours) minimum ttl = 3600 (1 hour) baylink.com nameserver = ns1.thpl.lib.fl.us baylink.com CPU = SPARCstation 20/51 OS = SunOS 4.1.3_U1 baylink.com mailbox = jra.scfn.thpl.lib.fl.us text = contact.baylink.com baylink.com preference = 1, mail exchanger = scfn.thpl.lib.fl.us baylink.com nameserver = ns1.thpl.lib.fl.us ns1.thpl.lib.fl.us internet address = 204.198.80.2 scfn.thpl.lib.fl.us internet address = 204.198.80.3 Apologies to the NANOG list, but until Greg makes his mailer a littl less (incorrectly) anal-retentive, he otherwise won't see this... and I'd hate for an ops guy not to know that his gear is configured wrong. :-) Cheers, -- jra -- Jay R. Ashworth jra@baylink.com Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "People propose, science studies, technology Tampa Bay, Florida conforms." -- Dr. Don Norman +1 813 790 7592