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Subject: Re: archiving old mail
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Nicolas Kowalski <Nicolas.Kowalski@imag.fr> writes:

>> Perhaps the following works?
>>
>> (expiry-target . my-expiry-target-function)
>>
>> (defun my-expiry-target-function (group)
>>   "Return the archive group filename"
>>   (concat "archive." group "." 
>> 	  (format-time-string "%Y.%m" 
>> 			      (safe-date-to-time 
>> 			       (message-fetch-field "Date")))))
>
>
> Unfortunately no. I just tried with a big group. The expiry process
> takes much more time, but no archive group is created. 
>
> Hmm, this is perhaps the trick : the archive group should exist before
> the expiration process begins. What is the function for this ?

C-h k for `G m' in the group buffer says `gnus-group-make-group',
perhaps you can use the function directly, or you can look in that
function to see what you have to do.