🚀 go-pugleaf

I sometimes use a webmail (let's call it foobarmail.com) which allows
to get return receipts from the recipient. So when I use it to send a
mail to myself (or to anybody else), the message contains the header

"Disposition-Notification-To: apokrif@foobarmail.com"

A few seconds after the message has been sent, I get on foobarmail.com
a message which reads: "Your message has been relayed by
anotherwebmail.com". Once I've read the message on my other account
(on anotherwebmail.com), I get another message on foobarmail.com,
which reads something like: "The message you sent has been read by its
recipient".

So far, so good. The problem is that, instead of using a Web
interface, I prefer sending messages with Gnus. So I tell Gnus to use
the From field "apokrif@foobarmail.com", and I expect to receive two
messages on Foobarmail: "Your message has been relayed" and "Your
message has been read". In fact, I get only the latter, and not he
former.

So I don't understand why the confirmation messages I get depend on
the interface or the client I use, whereas the messages they generate
contain exactly the same Disposition-Notification-To header. I tried
to add a Return-Receipt-To header, but that doesn't change
anything. Any idea ?

I don't know whether the problem lies in Gnus, in the SMTP server, or
anywhere else, so I crosspost with a default Followup-To
comp.mail.misc.

-- 
Un site amusant: http://citeseer.nj.nec.com/cs