[Dovecot] More Migration Questions

Richard Hobbs richard.hobbs at crl.toshiba.co.uk
Fri Aug 14 19:23:29 EEST 2009


Hello,

Thanks again - your reply will help greatly.

I have a rather more annoying problem at the moment, best described by
my conversation in the dovecot IRC channel...

i've telnetted to 110 on old server

the "uidl" command shows 3 UIDLs

uidl command also shows 3 UIDLs from new server...

trouble is, despite seeing the same 3 UIDLs on the old mail server *and*
the new mail server, when issuing the "uidl" command through port 110
after logging in, i just setup the account in my mail client against the
old server, downloaded 3 msgs, changed the config for the new server,
and it downloaded the same msgs again!

ok, on the old server, in the received email, towards the bottom of the
headers, i see this:

X-UIDL: a=="!(3N"!&D'"!87D"!

on the new server, in the duplicate received email, right at the top,
before any other headers, i see this:

X-UIDL: a=="!(3N"!&D'"!87D"!

whaton earth is going on here...

both now have the same X-UIDL, but are being downloaded separately!

So... does anyone have any ideas?

Thanks again!

Richard.


Timo Sirainen wrote:
> On Fri, 2009-08-14 at 15:39 +0000, Richard Hobbs wrote:
>>> That's better actually, you don't then have to add those ~/mail/
>>> compabilitity namespaces.
>> Well, i haven't added any ~/mail/ compatibility namespaces knowingly...
>> i guess they might be in the default config (my version has been built
>> for debian), but how would i check?
>>
>> Basically, the problem is that some users have their folders in
>> "~/mail/" and others have their folders in "~/".
> 
> This is kind of what I meant by the compatibility namespaces. If some
> users have ~/mail/ and whatelse, you'll probably want to add such
> namespaces to Dovecot. See
> http://wiki.dovecot.org/Namespaces#Backwards_Compatibility:_UW-IMAP
> 
>> I want to convert both, and also and up with a standard location in the
>> maildir setup. I guess the best way to do this is to just copy
>> everyone's mailboxes from "~/" into "~/mail/" before i run the
>> conversion, right? 
> 
> That should work, as long as you can find all the mailboxes (or are all
> files in ~/ mailboxes?)
> 
>> As long as people don't object to their folders
>> potentially changing places within their IMAP client, everything will be
>> OK, right?
> 
> With the compatibility namespace it should be pretty transparent to
> clients. Also you'll probably want to set separator=/ in all the
> namespaces.
> 

-- 
Richard Hobbs (IT Specialist)
Toshiba Research Europe Ltd. - Cambridge Research Laboratory
Email: richard.hobbs at crl.toshiba.co.uk
Web: http://www.toshiba-europe.com/research/
Tel: +44 1223 436999        Mobile: +44 7811 803377
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