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Suddenly my ses mail started giving error.

"It must be within 300 secs" sync

From forums at first glance it looked servertime and ses mail server time not in sync. but i verified both are in sync.

$date;wget -S "";
Mon Jan  7 02:45:04 UTC 2013 <---Local server time 
--2013-01-07 02:45:04-- <---email server time

Any clue why this error?

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Thanks both are diff by few minutes. Running ntpd Thanks! – Raxit Sheth Jan 7 '13 at 3:33
up vote 0 down vote accepted

The timestamp you see is from wget and is the local time on the machine where you issued the command. Down below in the part you snipped away you will likely find some headers stating the time of the remote machine, something like Date: Mon, 07 Jan 2013 03:23:00 GMT.

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in my /etc/ntp.conf file server [0,1,2,3] iburst is configured. running ntpdate is telling the NTP socket is in use, exiting. do i need to sync with ses server time? if yes, with which server i should sync? so i can add that entry in my ntp.conf file? – Raxit Sheth Jan 7 '13 at 4:07
Use either ntp or ntpdate. ntpd is a daemon and will constantly keep your time in sync, while ntpdate is more useful for one-time updates. If the timediff is large, it can take ntpd some time to adjust it (the adjustment will be continously, with a clock running slower or faster as required). In that case, stop ntpd, make a one-time run of ntpdate and restart ntpd. – Sven Jan 7 '13 at 4:15
@SvenW: That's no longer needed. ntpd has known how to do a correct initial time adjustment for several years now. – David Schwartz Jan 7 '13 at 8:29

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