You might find this helpful.
http://www.howto-outlook.com/howto/d...eadreceipt.htm
"Thomas_MSN" <(E-Mail Removed)> wrote in message
news:9C940317-7821-4143-BB67-(E-Mail Removed)...
> Hello,
>
> At work I have Outlook 2007, I've configured a POP3 Yahoo account in order
> to received a COPY of the mails the come to this address (and it doesn't
> delete the mail from Yahoo's server so I get it when I get home).
>
> I never use Outlook to reply from work with that account.
> I did not configure the SMTP (I wrote smtp.mail.yahoo.fr, I have no idea
> if
> it even exists, because I don't want to use it), and I don't know which
> SMTP
> I could use from work
>
> Recently, my father sent me some mails asking for a return receipt.
> Accidentally I click yes for one of them.
>
>
> Since them, almost every time Outlook send/receives the mails, it tries to
> send this return receipt, which of course is never sent ...
>
> The receipt doesn't appear in my outbox nor in my drafts or sent mails ...
> So I wonder if there is a way to suppress it. Thank you