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.) Regards, -- Jochen Bern Systemingenieur Binect GmbH -------------- next part -------------- A non-text attachment was scrubbed... Name: smime.p7s Type: application/pkcs7-signature Size: 3449 bytes Desc: S/MIME Cryptographic Signature URL: <https://dovecot.org/pipermail/dovecot/attachments/20210118/b7c51d48/attachment.p7s>
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. --