[Dovecot] UW-IMAP -> Dovecot : patch to remove nasty "internal messages" from UW-IMAP ?

[Xavier Beaudouin]

The main problem I have is that I have more than 700k boxes... And I 
cannot (yet?) affording to convert them into
maildir (even if it is more efficient.....)...

/Xavier
Le 10 févr. 04, à 18:26, Rick Johnson a écrit :

> Many of the scripts that do the conversion remove this message.
>
> I used perfect_maildir.pl to do my conversion. It was more or less 
> dead-on, but had the habbit of marking some unread messages 
> incorrectly as "read" after the conversion.
>
> I've attached a patch which "fixed" this in my case. This patches 
> against perfect_maildir.pl v0.2.
>
> -Rick
>
> Xavier Beaudouin wrote:
>> Hello there,
>> We want to move from UW-IMAP to Dovecot (mbox format), works like a 
>> charm, but UW-IMAP has that bloody habbit to make a stupid message in 
>> all his mailbox files :
>>  From MAILER-DAEMON Thu Apr 19 10:30:01 2001
>> Date: 19 Apr 2001 10:30:01 +0200
>> From: Mail System Internal Data 
>> <MAILER-DAEMON at mailhub2-vil.isdnet.net>
>> Subject: DON'T DELETE THIS MESSAGE -- FOLDER INTERNAL DATA
>> Message-ID: <987669001 at mailhub2-vil.isdnet.net>
>> X-IMAP: 0987630138 0000000001
>> Status: RO
>> This text is part of the internal format of your mail folder, and is 
>> not
>> a real message.  It is created automatically by the mail system 
>> software.
>> If deleted, important folder data will be lost, and it will be 
>> re-created
>> with the data reset to initial values.
>> Is there any patch / trick / whatever to avoid that such "stupid" 
>> message to be not served by dovecot ?
>> Thanks,
>> /Xavier
>
>
> -- 
> Rick Johnson, RHCE #807302311706007 - rjohnson at medata.com
> Linux/Network Administrator - Medata, Inc.
> PGP Public Key: https://mail.medata.com/pgp/rjohnson.asc
> 74c74,77
> <   $extra .= 'S' if (($flags =~ /R/) || ($flags =~ /O/)); # seen
> ---
> > #  $extra .= 'S' if (($flags =~ /R/) || ($flags =~ /O/)); # seen
> > # Above is an "or", UW-IMAP uses RO for seen combined. O is "old, 
> but not seen, so we want no flags in that case
> > # Below fixes, and also accounts for some servers using "U" for 
> old/read or undeleted.
> >   $extra .= 'S' if ((($flags =~ /R/) && ($flags =~ /O/)) || ($flags 
> =~ /U/)); # seen
> 76c79,81
> <   $file .= ":2,$extra" if $extra;
> ---
> > #  $file .= ":2,$extra" if $extra;
> > # We want the ":2," anyway to show that the message isn't "new" with 
> Dovecot, but has no other status, make unconditional.
> >   $file .= ":2,$extra";