Thanks a lot for your quick response.

I thought that dovecot won't start until the server time reaches the time before the "time jump".

From your point of view dovecot will start normally if I adjust the time when dovecot is stopped?

Thanks a lot for clarification.

Ralf Hildebrandt wrote:

• maximus12 info_postfix@gmx.ch:

...

Hi,

I have the issue that my server clock is 45min fast. Therefore I would like to install ntp. I read a lot on the internet about dovecot and ntp. My issue is that 45 min are a lot an I would like to minimize mail server downtimes as much as possible. I don't care if the time corrections with ntp takes more than a few month.

Does anyone know how I should proceed (e.g. how I have to setup ntp -> no time jump during installation and afterwards).

stop dovecot & postfix ntpdate timeserver start dovecot & postfix start ntpd

the time jump is only really critical when the programs are running.

-- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebrandt@charite.de | http://www.charite.de

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Hi Ralf,

Thanks for your help. Dovecot stop Change the server time Dovecot start

Got a warning but it worked! Thanks a lot for your help. (With dovecot 1.x)

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On Thu, 2012-01-12 at 07:47 -0500, Harlan Stenn wrote:

then as late as possible in the startup sequence, run:

• ntp-wait -v -s 1 ; start dovecot and postfix (and database servers)

I'll +1 that advice, I introduced ntp-wait sometime ago when dovecot kept bitching, not a single glitch since.