Emails verification link to whitelist only works on super admins. (Tried with gmail, live, yahoo, custom email)
After you put HTA ACCESS password in once and used it for the 2nd/3rd time password doesn't work.
The AddOn prefix is for when you're posting an AddOn, otherwise please use your vBulletin version to make it easier to identify what version this is applicable to
I don't know what you mean by email verification link to whitelist, are you referring to the authorisation link? If so, that is an issue with your email client. In gmail, thunderbird, emclient as well as Horde it works fine
The password doesn't need to be reentered for the duration of the session, that's a feature in php and not a bug