Hi, I'm not 100% sure the greylisting per sender / recipient is done by Yahoo. Nevertheless this is not the issue here (trying out to figure out what Yahoo is doing).
The problem is Exim when: - sending lots of emails to the same destination domains. Exim is no retrying fast enough when the remote destination smtp server is doing aggressive greylisting (temporary defers). What i see in the logs (even after i did the changes suggested by Bill Hacker) is: - attempts for the first 10 - 15 messages from the queue to be delivered - after that 1000 lines with @yahoo.com R=dnslookup T=remote_smtp defer (-53): retry time not reached for any host The reason for this is because the /var/spool/exim/db/retry database uses as key the domain / hostname, for remote smtp transfer instead of the full recipient address. Changing it in the configuration (retry_use_local_part) does not work because it's not implemented (according to the docs). On Tue, Apr 21, 2009 at 11:23 AM, Heiko Schlittermann <[email protected]> wrote: > Hello Catalin, > > You're absolutly sure about the greylisting on per sender/recipient > base? > > That is, what I get from one of my machines (I never used this machine for > outgoing mail): > > r...@hh:~# swaks -f [email protected] -t [email protected] -q rcpt > === Trying f.mx.mail.yahoo.com:25... > === Connected to f.mx.mail.yahoo.com. > <** 421 Message from (213.128.132.49) temporarily deferred - 4.16.50. > Please refer to http://help.yahoo.com/help/us/mail/defer/defer-06.html > -> QUIT > *** Remote host closed connection unexpectedly. > > About 5 minutes later it would work: > > r...@hh:~# swaks -f [email protected] -t [email protected] -q rcpt > === Trying e.mx.mail.yahoo.com:25... > === Connected to e.mx.mail.yahoo.com. > <- 220 mta114.mail.re4.yahoo.com ESMTP YSmtp service ready > -> EHLO hh.is.schlittermann.de > <- 250-mta114.mail.re4.yahoo.com > <- 250-8BITMIME > <- 250-SIZE 31981568 > <- 250 PIPELINING > -> MAIL FROM:<[email protected]> > <- 250 sender <[email protected]> ok > -> RCPT TO:<[email protected]> > <- 250 recipient <[email protected]> ok > -> QUIT > <- 221 mta114.mail.re4.yahoo.com > === Connection closed with remote host. > > Best regards from Dresden/Germany > Viele Grüße aus Dresden > Heiko Schlittermann > -- > SCHLITTERMANN.de ---------------------------- internet & unix support - > Heiko Schlittermann HS12-RIPE ----------------------------------------- > gnupg encrypted messages are welcome - key ID: 48D0359B --------------- > gnupg fingerprint: 3061 CFBF 2D88 F034 E8D2 7E92 EE4E AC98 48D0 359B - > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (GNU/Linux) > > iEYEARECAAYFAkntgn0ACgkQ7k6smEjQNZvgHwCdGoXa9IZeN1TW2pSegcdTp/I9 > e8oAoNBHMdzDvj7skGbkdYPsFBzhDB85 > =N1FM > -----END PGP SIGNATURE----- > > -- > ## List details at http://lists.exim.org/mailman/listinfo/exim-users > ## Exim details at http://www.exim.org/ > ## Please use the Wiki with this list - http://wiki.exim.org/ > -- Catalin Constantin Dazoot Software http://www.dazoot.eu/ -- ## List details at http://lists.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
