iredmail / iRedMail

Full-featured, open source mail server solution for mainstream Linux/BSD distributions.

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warning: dnsblog_query: lookup error for DNS query - bug or too verbose error reporting?

interduo opened this issue · comments

2023-07-26T14:35:10.187741+00:00 poczta postfix/dnsblog[10492]: warning: dnsblog_query: lookup error for DNS query 97.139.105.184.b.barracudacentral.org: Host or domain name not found. Name service error for name=97.139.105.184.b.barracudacentral.org type=A: Host not found, try again

This is not a bug, it is caused by your DNS resolver.
barracuda has lookup limits, so if you use a highly used DNS resolver, it can block the query

OR

barracuda was unreachable at this very moment

On fresh install You need to:

  • go to barracudacentral.org,
  • register an account,
  • configure IP addresses list,

Just do that if You like barracuda responses :)
I suggest to put this info in manual and installer.