[Dovecot] POP3: Keep a copy on server failed ...
Dominique Feyer
dfeyer at net4all.ch
Mon Jul 17 16:18:19 EEST 2006
Le lundi 17 juillet 2006 à 15:57 +0300, Dumitru Negara a écrit :
> 1. You mentioned a "cluster". Can you provide more details on your setup?
We have 1 load balancer server, after 2 antispam antivirus, and finaly 2
dovecot server (for delivery of mail and POP/IMAP connection).
Share filesystem is on an NFS server and DB on an other PostgreSQL
server.
>
> 2. Do you have "dovecot-uidlist" file in users homes? Is this file get
> updated after users download their emails over POP3?
Yes dovecot-uidlist is on the homedir of each user (NFS)
Before POP3 (with one message in the mailbox)
mail2:/var/mail/jamesdo.com/mails/test# stat dovecot-uidlist
File: `dovecot-uidlist'
Size: 106 Blocks: 8 IO Block: 4096 fichier
r�gulier
Device: eh/14d Inode: 45383789 Links: 1
Access: (0600/-rw-------) Uid: ( 2000/ UNKNOWN) Gid: ( 2000/ UNKNOWN)
Access: 2006-07-17 15:09:15.000000000 +0200
Modify: 2006-07-17 13:30:01.000000000 +0200
Change: 2006-07-17 13:30:01.000000000 +0200
And after POP3
mail2:/var/mail/jamesdo.com/mails/test# stat dovecot-uidlist
File: `dovecot-uidlist'
Size: 106 Blocks: 8 IO Block: 4096 fichier
r�gulier
Device: eh/14d Inode: 45383789 Links: 1
Access: (0600/-rw-------) Uid: ( 2000/ UNKNOWN) Gid: ( 2000/ UNKNOWN)
Access: 2006-07-17 15:12:54.000000000 +0200
Modify: 2006-07-17 13:30:01.000000000 +0200
Change: 2006-07-17 13:30:01.000000000 +0200
So the file is just accessed but not updated. If I send new mail, then
this file is updated. The content of the file is:
1 0 5
1 1153135369.P21267Q0M227315.mail2.clm.net4all.ch
2 1153135573.P22034Q0M500053.mail2.clm.net4all.ch
3 1153141989.P14835Q0M535898.mail2.clm.net4all.ch
4 1153142047.P15076Q0M96504.mail2.clm.net4all.ch
Thanks
>
> Dumitru
>
> Dominique Feyer wrote:
> > I change nothing since 1 weeks, last update was to remove the ACL
> > plugin.
> >
> > For default_mail_env, I have:
> >
> > default_mail_env = maildir:%h/:INDEX=MEMORY
> >
> > For pop3_uidl_format, I read in the comment of the sample conf file:
> >
> > "UW's ipop3d : %08Xv%08Xu" and a few line after "%08Xu%08Xv will be the
> > new default" This is not the same string and I use the second "%08Xu%
> > 08Xv"
> >
> > This is strange the default Dovecot is %08Xu%08Xv and for UW is %08Xv%
> > 08Xu ?
> >
> > Thanks
> >
> >
> > Le lundi 17 juillet 2006 à 15:29 +0300, Dumitru Negara a écrit :
> >> Did you modified something in your config recently?
> >> Like default_mail_env = ... CONTROL=/some/path
> >>
> >> Dumitru
> >>
> >> Dominique Feyer wrote:
> >>> I have just use 0.99 for test before production on this server. The
> >>> first version in production was beta9.
> >>>
> >>> I just create some new account right now with RC2, and I have this
> >>> probelm.
> >>>
> >>> Thansk for your help
> >>>
> >>> Le lundi 17 juillet 2006 à 15:02 +0300, Dumitru Negara a écrit :
> >>>> Is this a new installation of Dovecot? Or you just upgraded from 0.99?
> >>>>
> >>>> Dumitru
> >>>>
> >>>> Dominique Feyer wrote:
> >>>>> I have this in my configuration:
> >>>>>
> >>>>> protocol pop3 {
> >>>>> pop3_enable_last = no
> >>>>> pop3_uidl_format = %08Xu%08Xv
> >>>>> pop3_client_workarounds = outlook-no-nuls, oe-ns-eoh
> >>>>> }
> >>>>>
> >>>>> If I change the pop3_uidl_format I need to remove all the index
> >>>>> file on
> >>>>> my server ? I read on the doc that this change cann't be done on a
> >>>>> production server ?
> >>>>>
> >>>>> I have more than 10'000 accounts on this cluster so I can't have a big
> >>>>> downtime.
> >>>>>
> >>>>> Thanks
> >>>>>
> >>>>> Le lundi 17 juillet 2006 à 14:48 +0300, Dumitru Negara a écrit :
> >>>>>> Hi,
> >>>>>>
> >>>>>> Dominique Feyer wrote:
> >>>>>>> I have a big problem with our cluster, if i read my mail with POP3
> >>>>>>> client (and check the option, keep a copy on server), every time I
> >>>>>>> read
> >>>>>>> my mail, my client retrive ALL messages an the mailbox !!!
> >>>>>>>
> >>>>>>> I test this with:
> >>>>>>>
> >>>>>>> - Apple Mail 1.0 + 2.0
> >>>>>>> - M$ Outlook 2000 + 2003
> >>>>>>> - Thunderbird
> >>>>>>>
> >>>>>>> We use:
> >>>>>>> - Dovecot RC1
> >>>>>>> - Postfix on Debian Sarge (stable)
> >>>>>>>
> >>>>>>> Can you know this bug ? Or have a workaround ?
> >>>>>>>
> >>>>>>> This function is really important for our customer as we offer a
> >>>>>>> backup
> >>>>>>> solution for her mails.
> >>>>>>>
> >>>>>>> Thanks
> >>>>>>>
> >>>>>> It's probably just a configuration issue.
> >>>>>>
> >>>>>> If you upgraded from dovecot 0.99 or maybe migrated from another
> >>>>>> IMAP/POP3 server you should set correctly the "pop3_uidl_format"
> >>>>>> parameter.
> >>>>>>
> >>>>>> I upgraded from 0.99 to 1.0.rc2 and below is my "pop3_uidl_format":
> >>>>>>
> >>>>>> # POP3 UIDL format to use. You can use following variables:
> >>>>>> #
> >>>>>> # %v - Mailbox UIDVALIDITY
> >>>>>> # %u - Mail UID
> >>>>>> # %m - MD5 sum of the mailbox headers in hex (mbox only)
> >>>>>> # %f - filename (maildir only)
> >>>>>> #
> >>>>>> # If you want UIDL compatibility with other POP3 servers, use:
> >>>>>> # UW's ipop3d : %08Xv%08Xu
> >>>>>> # Courier version 0 : %f
> >>>>>> # Courier version 1 : %u
> >>>>>> # Courier version 2 : %v-%u
> >>>>>> # Cyrus (<= 2.1.3) : %u
> >>>>>> # Cyrus (>= 2.1.4) : %v.%u
> >>>>>> # Older Dovecots : %v.%u
> >>>>>> #
> >>>>>> # Note that Outlook 2003 seems to have problems with %v.%u format
> >>>>>> which was
> >>>>>> # Dovecot's default, so if you're building a new server it would be a
> >>>>>> good
> >>>>>> # idea to change this. %08Xu%08Xv should be pretty fail-safe.
> >>>>>> #
> >>>>>> # NOTE: Nowadays this is required to be set explicitly, since the old
> >>>>>> # default was bad but it couldn't be changed without breaking
> >>>>>> existing
> >>>>>> # installations. %08Xu%08Xv will be the new default, so use it
> >>>>>> for new
> >>>>>> # installations.
> >>>>>> #
> >>>>>> #pop3_uidl_format =
> >>>>>> pop3_uidl_format = %v.%u
> >>>>>>
> >>>>>> This works fine even with Outlook 2000/2003. Clients
> >>>>>> (Thunderbird, OE,
> >>>>>> Outlook 2000/2003) download just new mails.
> >>>>>>
> >>>>>> Regards,
> >>>>>> Dumitru
> >>>>>>
> >>>>>>
--
Net4all S.A.
Dominique Feyer
Administrateur Système
Ch. de la Colline 5bis
CH-1007 Lausanne
dfeyer at net4all.ch
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