auto reminders of subscription expiration
 

I can't find it now, but I believe I saw somewhere that a vB forum automatically sends a paid sub reminder about 10 days before expiration. I may have missed it but I did not find this information in the manual.

I'd like to control all communications with my subscribers (& all members.) If this is true, how can I find this message and edit the content? Currently I manually send 2 reminders 1 month and about 7 days out. They include short information on reasons to re-subscribe.

An auto-reminder would be a very nice thing, but I do want to manage what it says to my subscribers.

Also ... if there are any other automatic messages sent by the forum to the members, where can I find out about them, and how do I control the sending, timing and content? I am aware of those that are in the Admin CP > vBulletin Options for registration.

Thanks! :)