is there a way to get an ACK from the mutt version of FBSD?

[Wojciech Puchar]

> 	guys,
>
> 	i did something to evolution (or mail) so it sends a "your mail was opened
> 	on user at foo.com".  i've been hunting thru the mutt docs; i do not see how to
> 	get a similar ack from mutt as evo.  is there, perhaps a sendmail.[cf|mc]

If i understood you correctly, you mean confirmation of mail being read.
It is not mail server job, it's purely mail client functionality.
I'm not even sure if it was ever standarized.

but for sure sendmail.mc/cf is not the right place to search only your 
mail program configs/docs.