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Sendmail problem - Deferred mail



Hi List,

Well, there was already similar problem mailed on this list, but
somehow I missed the solution.
The problem is next - suddenly I began to experience delivery
problem with mail, INCOMING to my domain. I got the error
"Deferred: Name server: host.domain.co.il: host name lookup failure"
for EACH host in the domain. I can ping from the mail server any 
host in the domain and I can telnet 25 any one of them.
Nothing was changed into Sendmail configuration, few A records
was added to DNS during two last days.

Is there specific sendmail mailing list with big archive?


Best Regards
Semion Lisyansky

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