Accessing bcc recipients in ActionMailer view

Apologies if this has been covered already, but I haven’t been able to
turn anything up after a bit of searching. I have an app that sends
out a mail to a large bcc list. I’d like to be able to add some
personalization to the mail (you know, something like “Hi, person X,
thanks for being on our huge mailing list!”) but I’m not sure how to
access the mail object in the ActionMailer view to get at the “to”
header. Is this at all possible? Any advice (or pointers to docs)
would be much appreciated. Thanks!