On Thu, Jul 25, 2013 at 12:16:15PM +0530, Abhijeet Rastogi wrote: > Hi all, > > 1. If a mail is temporarily deferred from a remote MTA, postfix should > back-off instantly for some time but I observed this today. > > Jul 24 06:40:16 server.name postfix-smtp4/smtp[6204]: DEC8B4F0185: host > mta6.am0.yahoodns.net[98.138.112.35] refused to talk to me: 421 4.7.0 > [GL01] Message from (1.2.3.4) temporarily deferred - 4.16.50. Please refer > to http://postmaster.yahoo.com/errors/postmaster-21.html > Jul 24 06:40:16 server.name postfix-smtp4/smtp[6204]: DEC8B4F0185: host > mta6.am0.yahoodns.net[63.250.192.46] refused to talk to me: 421 4.7.0 > [GL01] Message from (1.2.3.4) temporarily deferred - 4.16.50. Please refer > to http://postmaster.yahoo.com/errors/postmaster-21.html > > Can anyone explain why would this happen?
It's kind of explained in http://postmaster.yahoo.com/errors/postmaster-21.html (and Links from there) You get this, because there were complaints of Yahoo!-Users, that they don't want some of the mails your mailserver sends. Michael > > 2. I've multiple transports defined in master.cf which bind to different > IPs. When a mail is deferred, will it always be tried via the same > transport? If yes, is there a way I can change this behaviour? > > > -- > Regards, > Abhijeet Rastogi (shadyabhi) > http://blog.abhijeetr.com -- Michael P. Demelbauer Systemadministration WSR Arsenal, Objekt 20 1030 Wien ------------------------------------------------------------------------------- "To learn something new, take the path that you took yesterday." --John Burroughs
