[Dovecot] Time moved backwards

[Eugene]

Hello,

From: "Quentin Garnier" <cube at cubidou.net>
> I'm not the one having trouble reading, here.  The proper way to start a
> system is to run ntp*date* (as early as possible) and then ntpd.

That's what you say, and it is far from being officially accepted.
NTP project clearly deprecates ntpdate for several reasons. In addition, 
"the clock should not be stepped until a consistent offset has been observed 
for a sanity interval, currently 15 minutes". So ntpd may in principle step 
time again.
http://www.ntp.org/ntpfaq/NTP-s-config.htm

Eugene