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On Wed, 4 Feb 2015, ML mail wrote:
I am running a dovecot and proxy server on two different virtual machines and on the dovecot proxy server I see around 5-6 times per day the following warning:
Feb 03 16:15:12 auth: Warning: proxy(email@domain.com,xxx.xxx.xxx.xxx,<ABC123456789>): DNS lookup for mailboxserver.domain.com took 1.550 s
I do not really understand how from time to time DNS queries are slow, I tried replicate this issue using dig to resolve the same DNS entry and it was always very fast. Is there any way I can debug better this issue? or is this nothing to worry about really?
Maybe the usual network problems? Did you run a local DNS caching server?
Steffen Kaiser -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
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