Not many affiliate networks provide you with such data as an open rate for your outgoing affiliate correspondence (such as approval emails or newsletters), and this is really unfortunate. Commission Junction does provide merchants/advertisers with such important information as a part of the Email Campaigns reporting:
Looking at the data for the last five pieces of email correspondence we sent out for one of our clients I see the following picture:
Ok, let’s presuppose that the number will double if plain text messages were taken into the calculation as well. Our total would then be 2,500. This still looks like a staggering number to me. Apparently only between 17.65% (1,250) and 35.3% (2,500) of this particular program’s affiliates are opening the email messages (mostly newsletters) that I am sending to them. The rest must either be deleting them without opening, or receiving them at email account that they never check.
This brings my thoughts back to the question of affiliate activation. Is it even possible to get 100% (or 80%, or even 50%) of the affiliates aboard any given affiliate program to become active? If so, how when they are not interested in hearing from you? Both of these are, of course, rhetoric questions.