email from MacBook pro disappeared

Green Flash wrote:

Prepared an email. recipient addresses in BCC box but none in To box. Sent mail and it disappeared. A blank page appeared and it would not be dismissed.

you need a To: address

Cc and Bcc are "carbon copies" that additionally get sent along with your To address.

if it is stuck in the outbox delete it and try again.

Green Flash wrote:

I am unable to find the mail that I sent. It is not in my sent mail box. I do have a blank mail page that I have been unable to remove.

outbox or drafts