nnimap, uidvalid

nnimap, uidvalid

[Nicolas Kowalski]

Hello.

I use XEmacs/Gnus 5.8.8, with the nnimap backend.
My incoming mail is sorted through procmail, and delivered with dmail
from the UW-IMAP utilities to several IMAP folders.

In most cases, there are no problems. However, my INBOX group is very
frequently complaining with the uidvalidity error. As some people (I
cannot remember who, sorry) told me in the past, when this error
occurs, I reset this uid (G p), save (s) .newsrc.eld, then restart
Gnus. This is boring. Every new mail not filtered to imap folders and
then stored in my INBOX causes this error.

Please, is there a way to tell Gnus to automatically cleanup uids when
it encounters such problems ?

Thanks.
Nicolas.

Re: nnimap, uidvalid

[Kai Großjohann]

I think that some IMAP servers change the uidvalidity value every time
the mailbox becomes empty.  Maybe you can keep a dummy message in it?
Does that help?

Btw, I think a simpler way to reset uidvalidity is M-x
gnus-group-clear-data RET on that group.

Hm.  And also, I remember that Simon did a change in this area for
Oort Gnus.  Hm.  Ah, here:

/----[ lisp/ChangeLog ]
| 2001-07-06  Simon Josefsson  <jas@extundo.com>
| 
| 	* imap.el (imap-parse-address-list, imap-parse-flag-list)
| 	(imap-parse-body-extension, imap-parse-body-ext, imap-parse-body):
| 	Add information in `assert's.
| 
| 	* nnimap.el (nnimap-possibly-change-group): Ignore uidvalidity
| 	changes. (From nnimaps' point of view, `nnimap-verify-uidvalidity'
| 	and `nnimap-group-overview-filename', should handle all
| 	change-of-uidvalidity related issues.  But there may be other
| 	problems.)
\----

Does it help to upgrade to a version which has this change?

kai
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Re: nnimap, uidvalid

[Nicolas Kowalski]

Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai Großjohann) writes:

> I think that some IMAP servers change the uidvalidity value every time
> the mailbox becomes empty.  Maybe you can keep a dummy message in it?
> Does that help?

No.

> 
> Btw, I think a simpler way to reset uidvalidity is M-x
> gnus-group-clear-data RET on that group.

I also tried it, without success.

> 
> Does it help to upgrade to a version which has this change?
> 

Nope (oort 0.03).

This INBOX folder is standard mailbox. I think I have to tell procmail
to deliver unmatched mail to a specific IMAP folder (mail.misc) so
that I get the same (safe) behaviour than the others IMAP folders.
I will test this now.

Nicolas.

Re: nnimap, uidvalid

[Nicolas Kowalski]

Nicolas Kowalski <Nicolas.Kowalski@imag.fr> writes:

> 
> This INBOX folder is standard mailbox. I think I have to tell procmail
> to deliver unmatched mail to a specific IMAP folder (mail.misc) so
> that I get the same (safe) behaviour than the others IMAP folders.
> I will test this now.
> 

It works !
I suppose this is a limitation of the UW-IMAP server.

Thanks for your suggestions however.

Nicolas.