[feature] DSN for successfully delivered mails

[sriccio]

system info

Haraka	Haraka.js — Version: 2.8.25
Node	v13.12.0
OS	Linux mta-gw 4.15.0-91-generic #92-Ubuntu SMP Fri Feb 28 11:09:48 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
openssl	OpenSSL 1.1.1d 10 Sep 2019

Expected behavior

A SMTP extension (DSN) exists to notify sender of failures, but also of success if requested (NOTIFY=SUCCESS added to RCPT commands)

This not seems to be supported by Haraka. Actually it doesn't announce the feature and I can't find any code part that handle success deliveries notifications.

source:
https://tools.ietf.org/html/rfc3461#section-4.1

Observed behavior

Haraka doesn't announce DSN support and doesn't honor requests for successful deliveries when relaying or delivering locally an e-mail.

When relaying it should append the originally requested NOTIFY= value on RCPT when relaying to other servers.
When delivering locally it should send back a delivery succes notification back to the sender (if originally requested).

Steps to reproduce

Send a mail relayed or delivered by haraka requestion a "Delivery success notification".

[DoobleD]

We're interested in this feature as well. :)

[sadanandGithub123]

HI @DoobleD is DSN added ?

[DoobleD]

Hi @sadanandGithub123, not that I'm aware of.

[msimerson]

moved to wiki/TODO