Lost access to linked email
 

I have another EQEMU account that was tied to an older email of mine. Unfortunately, that email does not get a lot of traffic, and gmail has deleted the email for inactivity. Thus, I can no longer change the password for that associated EQEMU account (though I do still have the login for eqemu and it works). Is it possible to attach a new email to an existing EQEMU for which the original linked email is deleted?

Negative, it is not possible. If the email account was deleted, maybe try to recreate it. else its gone