Mail bcc - Sends but no one receives

My first time using and I didn't find a forum specific to e-mail. If this isn't the right forum, please tell me where to go (I mean which forum!). In the last week 2 separate e-mails (different dates) had maybe 10 people's e-mail in bcc, with a cc to me. However, even though e-mail was sent I never rec'd my copy, nor did anyone else. All e-mail addresses are correct and long-time user names. I dragged the sent version out of the folder so I would at least keep that copy. Have been using my macbook pro for 2 years now w/o problems in e-mail. E-mail is version 5.2 (1257). All other mail works fine. All sw up-to-date (using Lion OS). Thanks.

Apart from double checking to make sure all your emails are spelled correctly, the only thing I can suggest is to resend.