Re: [Dovecot] Time moved backwards

Here's another thought:

From man ntpd:

If the -x option is included on the command line, the clock will never be stepped and only slew corrections will be used.

   The  issues  should  be  carefully explored before deciding to use

the -x option. The maximum slew rate possible is limited to 500 parts-per-million (PPM) as a consequence of the correct- ness principles on which the NTP protocol and algorithm design are based. As a result, the local clock can take a long time to converge to an acceptable offset, about 2,000 s for each second the clock is outside the acceptable range. During this interval the local clock will not be consistent with any other network clock and the system cannot be used for distributed applications that require correctly synchronized network time.