> -----Original Message----- > From: Mark Constable [mailto:[email protected]] > Sent: Tuesday, March 16, 2010 8:06 AM
> On Tuesday 16 March 2010 23:37:57 Bowie Bailey wrote: > > Mark Constable wrote: > > > I have a situation where a large company is sending out bulk > > > (legit) invoices from an internal host without a DNS > record that get > > > dropped at our front SMTP door. > > > > > > Mar 16 11:05:58 mail courieresmtpd: error, > > > relay=::ffff:216.82.249.131,from=<[email protected]>: > > > 517-Domain does not exist: sapgm0.domain.com. > > > > > > The messages come through a MessageLabs cluster so I > can't rely on a > > > single IP to allow smtpaccess relaying... > > > > > > 131.249.82.216.in-addr.arpa. 67927 IN PTR mail28.messagelabs.com. > > > > > > I don't want to open up relaying to all MessageLabs > servers so can > > > anyone suggest a "trick" to let this single host through? > > > > Add a DNS entry for sapgm0.domain.com. Or change the envelope From > > address to use a legitimate domain. > > I have absolutely no control over the generation of the > message headers or the DNS for domain.com. > > Apparently the 2nd option can never happen and the first > option is underway but the origanisation is so large it will > take months to add a DNS record for this host, or so I've > been told, hence I am looking for anything I can do in the > mean time so these emails can still get through to my clients. As a quick-and-dirty bandage while they get around to publishing their DNS record, you can just add their relevant "sapgm0" DNS record to your own server's DNS. The only wrinkle tends to come from forgetting that you've done this at some time down the road! > --markc Malc. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
