Processed vs Sent in Statistics

sent a campaign to a couple of lists, and I get 860 processed, but only 709 sent?

Can I find out the subscribers that weren’t sent an email? I tried the plug in to download the event log, but that hasn’t worked yet for me.

Processed means messages processed. The same message can be processed multiple times, usually in case of errors communicating with the SMTP server. The ‘sent’ statistic is the accurate representation of messages sent.