To be honest, I do not know how many mails it shows “per page” (though I assume it is a fixed number). So for comparison, I found the month on email@example.com with the highest volume in the past two years: May 2013 with “Page 1 of 4“.
I hope you will please forgive us, if we are a bit terse in our replies or slow to reply. We simply got a lot to deal with. 🙂