auth: Warning: DNS lookup took 1.550 s

[Steffen Kaiser]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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 at 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

iQEVAwUBVNIHFHz1H7kL/d9rAQJLEQgAu3pPaMZcsZdo7LdhPfltlR+PMQ7J1e8W
NNRT3mIrxZ+hGKEKi/Rdtmp18QcR1W0FEQy7xiMpmo8K3i6AstdSUyojf/OHRKV6
NBJxp/ejknI/O005mMAp5SZg0MgchP4Xv0wc6SkdUHoYxtoOo11FfUDSSTU8bH9+
twj5xYJ5UQM8WE2gTtAMxJElga2AZ00ZLTBBpDnCprK+WFx79bkHWCfYCZT+Cb3n
OfRoxhD/ZS8llUlZIR/SEXzqOTYstfo9ZnjxsG2Ya/dTVqk/9XhvQGAskdLGtQ4o
XmoguLrJRkRA/XORDlaPgNfSo3d50AcXki8kzMBHSRHeGXrXDfioyQ==
=Pp5Z
-----END PGP SIGNATURE-----