[linux] Nedorucovanie mailov na niektore adresy

[Rudolf Kollar]

Dobry den.
Mam mail server s exim a pekne krasne pracuje/pracoval 3 roky ale 
posledne dni je problem poslat mail na niektore domeny. Mail bud nepride 
resp je doruceny za den alebo dva. Prijat maily nie je problem. Dns 
zaznamy su OK /aj reverzny/.

/var/log/maillog
Apr 17 10:19:56 fedu exim[27711]: 2008-04-17 10:19:56 1JlkEh-0003FM-Sc 
mail3.zoznam.sk [213.81.185.33]: Connection timed out
Apr 17 10:19:56 fedu exim[27698]: 2008-04-17 10:19:56 1JlkEh-0003FM-Sc 
== xxx na zoznam.sk R=dnslookup T=remote_smtp defer (110): Connect
ion timed out
Apr 17 10:19:57 fedu exim[27850]: 2008-04-17 10:19:57 1JlkEh-0003FM-Sc 
d.mx.mail.yahoo.com [66.196.82.7]: Connection reset by peer
Apr 17 10:19:58 fedu exim[27850]: 2008-04-17 10:19:58 1JlkEh-0003FM-Sc 
g.mx.mail.yahoo.com [206.190.53.191]: Connection reset by peer
Apr 17 10:19:59 fedu exim[27850]: 2008-04-17 10:19:59 1JlkEh-0003FM-Sc 
g.mx.mail.yahoo.com [209.191.88.239]: Connection reset by peer
Apr 17 10:20:00 fedu exim[27850]: 2008-04-17 10:20:00 1JlkEh-0003FM-Sc 
c.mx.mail.yahoo.com [216.39.53.3]: Connection reset by peer
Apr 17 10:37:03 fedu exim[28233]: 2008-04-17 10:37:03 1JmPc7-0007LL-0v 
== xxx na centrum.sk R=dnslookup T=remote_smtp defer (-53): retry t
ime not reached for any host
Apr 17 10:37:56 fedu exim[28241]: 2008-04-17 10:37:56 
H=dell141.s.etech.sk [213.215.107.141]:35865 I=[194.160.234.146]:25 
sender verify def
er for <xxx na azet.sk>: Could not complete sender verify callout
Apr 17 10:37:56 fedu exim[28241]: 2008-04-17 10:37:56 
H=dell141.s.etech.sk [213.215.107.141]:35865 I=[194.160.234.146]:25 
sender verify def
er for <xxx na azet.sk>: Could not complete sender verify callout
Apr 17 10:37:56 fedu exim[28241]: 2008-04-17 10:37:56 
H=dell141.s.etech.sk [213.215.107.141]:35865 I=[194.160.234.146]:25 F=<xxx na a
zet.sk> temporarily rejected RCPT <xxx na fedu.ku.sk>: Could not complete 
sender verify callout
Apr 17 10:37:56 fedu exim[28241]: 2008-04-17 10:37:56 
H=dell141.s.etech.sk [213.215.107.141]:35865 I=[194.160.234.146]:25 F=<xxx na a
zet.sk> temporarily rejected RCPT <xxx na fedu.ku.sk>: Could not complete 
sender verify callout

Neviete mi poradit kde je problem, mne to vychadza bud na dns alebo 
problem so smtp. Dakujem.
Rudolf