Nice! Got it to work. Thank you, again!
For others, i added a new Rich Text field in the form containing nothing but <span id="showEmail"></span>
save & approved the form
re-save & approved landing page
Will an email token work if used as the default value? We're also looking at an example where most traffic won't have parameters but we want to keep the email field hidden.
I wasn't able to get this to work on an external landing page, but am wondering if this would work on a Marketo landing page.
Not sure exactly what you're asking...
That is the way to do it but I would, if possible, see if you can encrypt/decrypt the string and not pass emails in the URL as plain text - otherwise your database could be open for rogue unsubscribes.
Unless you mean leaving it encrypted all the way to the back end (necessitating a custom, very complex back-end workflow that I don't know that anybody is actually doing in reality) then you can already post the form on behalf of whomever you choose.
It's also possible that your CC staff could unsubscribe leads themselves. You'd just want to be sure that munchkin was removed from the page so their browsers didn't get cookied as the lead's themselves. You can find instructions for that below.
How to remove Munchkin from landing pages
You need to remove the _mkto_trk cookie / _mkt_trk field from the form as well, not just remove Munchkin (because staff will already have a Munchin cookie).
Thanks john, but we want to leave it up to the customer to confirm the correct email address to unsubscribe, not the CC staff.