Support SMTP BURL and IMAP URLAUTH

[A L]

It would be a nice bandwidth saving feature to support BURL when sending emails. Basically you only upload the outgoing mail to the IMAP server AND then simply reference that mail to the SMTP/Submission server, thereby avoiding double upload.


I just set up Dovecot IMAP server that has Submission support and the man says:

"The most notable feature that the proxy adds is the BURL capability. The main application of that capability—together with IMAP URLAUTH—is avoiding a duplicate upload of submitted e-mail messages; normally the message is both sent through SMTP and uploaded to the "Sent" folder through IMAP. Using BURL, the client can first upload the message to IMAP and then use BURL to make the SMTP server fetch the message from IMAP for submission, thereby avoiding a second upload. "

https://wiki.dovecot.org/Submission

Thanks!

---- From: berti <66bert...@gmail.com> -- Sent: 2018-11-12 - 13:18 ----

>
>
> Hello,
> there occurs an issue while exporting/ importing keypair from
> Windows-7/GPG-1.423 to Android-8.1/R2mail2.
>
> Private/public key contains one main key and three subkeys, all valid til
> 31.12.2019:
> pub xDDDC C
> sub x5B9E A
> sub x493D S
> sub x2BE6 E
>
> But if exporting and importing whole key, subkey x493D and subkey x2BE6
> shows a (wrong) validity til 31.12.2017 only...
> Key xDDDC and subkey x5B9E show correct expiration date 31.12.2019.
>
> Additional hint: Expiration date of all (sub)keys has been extended end of
> year 2017, two additional years have been added til 31.12.2019. Former
> expiration date had been 31.12.2017.
>
> *Confused* How to solve this issue?
>
> Please refer to red marked dates!
>
> Export GPG (Windows):
> https://i.imgur.com/rgw1ZZ9.png
>
> Import R2mail2 (Android):
> https://i.imgur.com/lAR0vgq.png
>
> Importing same key to OpenKeychain (Android-8.1) works,
> all keys are valid with expiration 31.12.2019:
> https://i.imgur.com/vYa1pUl.png
>
> Thx + best regards!
>
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