ç

Hi,

Well, you can request a Return receipt before sending, but it depends on the other end whether it works or not, & I'd bet 95%+ won't, don't, or cant.

http://en.wikipedia.org/wiki/Return_receipt

http://stikine.wordpress.com/2012/10/25/mac-mail-howto/ may work. Though this tip was not updated since Mavericks release. And of course the recipient may still block it themselves for their own reasons.