I actually resell hosting plans by using one single cPanel account and many addon domains under it.

Basically for each new user I don't create a new cP account, but I simply create a new ADDON domain and give him the necessary space.

I know in this way the final user won't be able to manage his emails and he want be able to access all cPanel features, but that's ok.

My only question is: "is there a limit on the number of cPanel addon domain that can be added?". I know in my account I'm allowed to add unlimited addon domains, but is there something that might happen that slows down cPanel or could create problems?

I mean is there any suggestions you could give me about the way i'm using cPanel which might not be the usual way of using it. (As for instance: "be aware that Awstast could run very slow or crash", or "be aware that mails from different addon domains under the same cp account could create many problems.", etc.)

Many thanks!