[Dovecot] INTERNALDATE call, timezone randomly changes
Hi guys,
I've run into an odd little problem. We use SquirrelMail as the basis for our webmail. Recently I've had a user complaining that the "Received" time on mail in the Sent folder has changed between logins. The change is always been by +1 hours or -5 hours. While checking, our developer had a time changed by +2 hours. On refresh it changed back. He poked through the code and it looks like SquirrelMail gets the received date via an IMAP command: A003 FETCH 1:10 (INTERNALDATE FLAGS BODY.PEEK[HEADER.FIELDS (To Content-Type Subject Date)])
I'm running dovecot 1.1.6, and I'm wondering how that function gets the date and time? If I can isolate the source of the timezone I can try and correct it. The server time shown by "date" is correct and /etc/localtime is /usr/share/zoneinfo/Europe/London (which is correct
- I've also se the timezone in /etc/conf.d/clock is set to "Europe/London" now), so I'm wondering where else the information could be coming from?
Thanks for any information you can give me to help isolate the problem. Guy
-- Don't just do something...sit there!
On Wed, 2008-11-26 at 12:25 +0000, Guy wrote:
I've run into an odd little problem. We use SquirrelMail as the basis for our webmail. Recently I've had a user complaining that the "Received" time on mail in the Sent folder has changed between logins. The change is always been by +1 hours or -5 hours. While checking, our developer had a time changed by +2 hours. On refresh it changed back. He poked through the code and it looks like SquirrelMail gets the received date via an IMAP command: A003 FETCH 1:10 (INTERNALDATE FLAGS BODY.PEEK[HEADER.FIELDS (To Content-Type Subject Date)])
Could you enable e.g. rawlog and show me logs of two different INTERNALDATE replies for the same message? http://wiki.dovecot.org/Debugging/Rawlog
I'm running dovecot 1.1.6, and I'm wondering how that function gets the date and time? If I can isolate the source of the timezone I can try and correct it. The server time shown by "date" is correct and /etc/localtime is /usr/share/zoneinfo/Europe/London (which is correct
- I've also se the timezone in /etc/conf.d/clock is set to "Europe/London" now), so I'm wondering where else the information could be coming from?
dovecot -n output could be helpful. Anyway assuming you're using maildir the INTERNALDATE is looked up from the file's mtime and then that time is converted to the server's local timezone.
The only things I can think of that could cause timezone to change unexpectedly is chrooting or setting TZ environment (before running dovecot or "tz" field returned from userdb).
participants (2)
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Guy
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Timo Sirainen