Mark Constable wrote: > 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. >
You can set "BOFHCHECKDNS=0" in the esmtpd file to prevent DNS checks on the From address. You may also be able to set this on a per-ip basis in the smtpaccess file, but I'm not sure about that. -- Bowie ------------------------------------------------------------------------------ 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
