Is your browser running while you are away from your computer?
What have you set in "Preferences" -> "Refresh View"?

Hello
Thank you for answering!
worked like a charm.
i thought this option is controlled only by the config file and when i have changed it there nothing append.
now i realize it can be individual user option.
is there a way to disable the option to control it from the webmail?

Raz

Warning: I did not test this!

You could set SOGoRefreshViewIntervals to empty array and SOGoRefreshViewCheck to "manually" or SOGoRefreshViewIntervals to array with the one desired and SOGoRefreshViewCheck to the corresponding value.

But this will not change existing settings of users.
You have to find those not wanted ones (e.g. via script) and change them.

Check value set for a user:
/usr/sbin/sogo-tool user-preferences get defaults ${SOGO_USER} SOGoRefreshViewCheck

Set value to the one desired for a user:
/usr/sbin/sogo-tool user-preferences set defaults ${SOGO_USER} SOGoRefreshViewCheck '{"SOGoRefreshViewCheck":"manually"}'