Duplicate suppression and message-id reuse

Dave McMurtrie dave64 at andrew.cmu.edu
Thu Jun 16 07:49:11 EDT 2011

On 06/16/2011 04:20 AM, Bron Gondwana wrote:
> On Thu, 16 Jun 2011 09:37:59 +0200
> Thomas Jarosch<thomas.jarosch at intra2net.com>  wrote:
>> On Thursday, 14. April 2011 17:45:11 Thomas Jarosch wrote:
>>> Here's my proposal to make duplicate suppression more robust:
>>> Combine the "message-id" header field with the "date" header field
>>> for the duplicate check. If a broken client reuses the message-id,
>>> there's a good chance the date field changed.
>>> Opinions?
>> Since noone objected, we're going to implement this around the end of July.
>> The patch will be sent to the list.
> Sounds good to me.  Thanks.

Agreed.  That catches the common cases of duplicates (mail sent to a 
list and cc'd to a person on the list, for example) but won't screw 
people who use Outlook.  I see no downside.



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