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Got SERVFAIL reply from

Posted: Mon Aug 31, 2020 8:10 am
by lamnian

Randomly Exim returns an error when trying to send an email

R=dnslookup defer (-1): host lookup did not complete

So when I try a nslookup I get the following

;; Got SERVFAIL reply from, trying next server
Server: ::1
Address: ::1#53

** server can't find SERVFAIL

Then I rerun the nslookup and I get


Non-authoritative answer:
Address: the.correct.ip.address

Then I start the exim queue again and the mail is sent successfully.

Any ideas?