Obtaining the IMAP GUID from a sieve script

[@lbutlr]

On 18 Jan 2021, at 04:12, Jochen Bern <Jochen.Bern at binect.de> wrote:
> On 16.01.21 07:42, Ron Garret wrote:
>> Because not every email has one.  RFC5322 doesn’t require them.
>> 
>> On Jan 15, 2021, at 6:30 PM, @lbutlr <kremels at kreme.com> wrote:
>>> Why not simply use the message-id?

> (Also, you can legally have several e-mails with the same Message-ID in
> your mailbox; e.g., someone addressed it to two aliases that both expand
> to you, just to name one possibilty where *both* go through *sieve* as
> well.)

I delete duplicates before they are delivered to a mailbox.



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