I'm trying to get a delivery receipt using the header: Return-Receipt-To but I never receive any delivery notification.
I'm aware that most servers drop this header. But after digging it seems that the issue is that delivery status notification is not implemented in the library (https://datatracker.ietf.org/doc/html/rfc3464)
If server supports DSN extension, all it takes (as far I understood) is to add some parameters to the RCPT TO part. Example:
xhit
commented
1 year ago
I'm trying to get a delivery receipt using the header:
Return-Receipt-Tobut I never receive any delivery notification.I'm aware that most servers drop this header. But after digging it seems that the issue is that delivery status notification is not implemented in the library (https://datatracker.ietf.org/doc/html/rfc3464)
If server supports DSN extension, all it takes (as far I understood) is to add some parameters to the RCPT TO part. Example:
RCPT TO:user@example.com NOTIFY=SUCCESS,FAILURE ORCPT=rfc822;user@example.com
Would it be possible to add this ?