Sorry, confused.
I just sent a campaign again under the same group after adding 22 new records to the list. and according to the stats, under the
Sent column, it went to the entire list again?

Where can I get a confirmation of how many recipients/records the campaign went to, please? I was rather shocked when I saw the
Sent number, but the 0 open rate suggests otherwise, however, how can I check that?
On another list I did the same after adding approx. 50 new records. The
Sent column also showed the entire list size and after 1.5 hours there are also no (0) opens.
So the result for both examples could potentially be that nobody has received that 2nd campaign. Any way of telling?