I'm no expert at this, but from what I understand Funnels can only be
pass the user cookie to next domain in the funnel. This is typical of
folks using 3rd party shopping carts.
However, in your case, I see no way to tie an email event to the
I would tag the email in the auto-responder message so I could get a
feel for how many users do not complete the process in some time
frame. You could then test different Thank-You page text, Email
subjects, etc to see what would improve the %.
In the Thank-You, I would definitely request that the user place your
email sender domain in their White List. My guess is that a lot of
the emails are caught by spam filters.