[Dovecot] More info from mail_log plugin

[Bardur Haskor]

Thanks a lot :-) it works just like I had hoped for with IMAP. Unfortunatly, the mail_log plugin won't start with Pop3 anymore. I get the following error in the log: 

Dec 18 18:24:49 bardur-desktop dovecot: POP3(bardur): dlopen(/usr/local/lib/dovecot/pop3/lib20_mail_log_plugin.so) failed: /usr/local/lib/dovecot/pop3/lib20_mail_log_plugin.so: undefined symbol: imap_write_flags  
Dec 18 18:24:49 bardur-desktop dovecot: Fatal: POP3(bardur): Couldn't load required plugins 

As I mentioned, I want to track when users read messages by looking at when the \Recent or \Seen flags change. A Pop3 session can set these flags, but I don't think (or know how) these changes can be logged by the mail_log plugin. Is it possible to log flag changes done by the pop3 session? 

> Subject: Re: [Dovecot] More info from mail_log plugin
> From: tss at iki.fi
> To: bhaskor at hotmail.com
> CC: dovecot at dovecot.org
> Date: Sun, 14 Dec 2008 07:23:49 +0200
> 
> On Fri, 2008-11-28 at 12:16 +0100, Bardur Haskor wrote:
> > HiWe need to track exactly when our users read messages.
> > Unfortunately, I haven't been able to figure out how we can achieve
> > this with Dovecot. Then I saw the mail_log plugin.Is it possible to
> > extend the plugin to also log system flag changes? This would be
> > great, because then we could see in the log files when the Seen flag
> > has been set. Changes in user defined flags would also be interesting
> > to track.I know this would create a lot of log entries, but for us
> > this wouldn't be a problem. Maybe the plugin would default to not
> > tracking flag changes, but could be configured to do so.
> 
> I added this code to v1.2 now. There you can use:
> 
> mail_log_events = delete undelete flag_change
> mail_log_fields = uid box msgid flags
> 
> And it logs like:
> 
> imap(tss): Info: flag_change: uid=125823, flags=(\Answered foo), msgid=<foo at bar.org>
> 

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