Timo Sirainen wrote:
On Fri, 2007-04-13 at 09:10 -0500, Phillip T. George wrote:
Anyway, I'm having a problem, that may or may not be related to
Dovecot. Specifically, duplicate (and sometimes triplicate) emails are
appearing. These emails have exactly the same queue ID, so its not that
they were sent multiple times. These dup emails do not show up to me ever.
What kind of filenames do they have in maildir? Do you see anything in
Dovecot's error logs? The only reason why Dovecot would internally
duplicate messages is if it detects multiple filenames with same base
name, which aren't hardlinks to each others. And that could happen if
the maildir filenames aren't truly unique. You said you're using
Procmail, are you sure you're not using MH filenames
(http://wiki.dovecot.org/MailboxFormat/Maildir)?
If that's not the problem, you can enable mail_log plugin and check if
it logs that the client does a duplicate COPY.
http://wiki.dovecot.org/Plugins/MailLog
Ok. Using the logging, I saw 2 entries today:
Apr 16 12:51:45 east dovecot: IMAP(user.domain.com), IP(70.177.64.93):
copy -> Spam: uid=718, msgid=<[EMAIL PROTECTED]>
Apr 16 12:51:45 east dovecot: IMAP(user.domain.com), IP(70.168.68.56):
copy -> Spam: uid=718, msgid=<[EMAIL PROTECTED]>
It appears that the problem is that the user has two email programs
running the same filters at the same time. Somehow, this creates a
duplicate message. Any clues as to why this might be? Are there any
options that may cause this behavior to change? I thought maybe the
options "maildir_copy_with_hardlinks" and/or
"maildir_copy_preserve_filename" may be helpful options...(they're both
set to the default of 'no').
Any recommendations?
Thanks,
Phillip
