Need the way to combine user subscription to aweber mailing list with vbulletin forum registration.
Aweber subscription is mandatory, forum subscription is optional.
The following method is suggested:
1. Use "verify email before subscription" vbulletin mod
2. Send email to aweber and use aweber parsing capability
3. Parse aweber subscription confirmation email on our end
Other variants will be considered as well. Aweber, vbulletin forum, and imap access to mailbox will be provided on demand.