hello,
have the same exact situation as 'bhsx's posting at the top. i did some digging last night here, but did not find anything with the keywords i was searching, and so was concerned that i had run into something no one else has so far...
then after getting more errors, and searching again, i found this thread, thank goodness...and a fix, it seems! hooray.
since yesterday, our staff can no longer use webmail, as immediately after login, it says 'mail session expired. please login again'.
also after logging into server manager, no options work, everything is 'internal server error'.
followed the discussion link to webcal reset /tmp directory command but that did not work it seems, as we still cannot use webmail or server manager.
btw, we are not using webcal, nor is it installed.
the fix seems to have worked for others, as they have posted thanks, but after connecting to our local server (192.168.1.1) with putty ssh client and running the reset command, and then rebooting, it still is down.
one thing that we do have setup is that we have 2 domains pointing to our server so that we can receive email for each staff member in the same mailbox. is my problem that there may be more /tmp directories i need to clear?
we have a staff member in europe right now and he depends on webmail and he's stuck!
thanks!