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Hello, 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...

..., ML mail <mlnospam at yahoo.com> 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 If you are seeing a warning that dans lookup took 1.5 seconds 5-6 times a day, why are you concerned? > I do not really understand how from time to time DNS queries are slow, Because from time to time, queries are slow. A hiccough in...

..., ML mail <mlnospam at yahoo.com> 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 If you are seeing a warning that dans lookup took 1.5 seconds 5-6 times a day, why are you concerned? > I do not really understand how from time to time DNS queries are slow, Because from time to time, queries are slow. A hiccough in...

...lt;mlnospam at yahoo.com> 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 > > If you are seeing a warning that dans lookup took 1.5 seconds 5-6 times a day, why are you concerned? > >> I do not really understand how from time to time DNS queries are slow, > > Because from time to time, querie...