hi, i have rackspace hosting for the multisite, and it been ...interesting, i love the service but they have no mail service, so i have to configure with SENDGRID (another pain)... how ever i manage to get the wp multisite to send the registration mail via SENDGRID but i wont be able to offer my clients there own top domain email accounts...
so i ask:
1.-i think its possible that if the server can support mapping so the individual sites can use there own domain name, can also support email eg. http://www.mailstore.com --->firstname.lastname@example.org , http://www.clientsdomain.com--->email@example.com.?? (hope i did explain clear enough)
2.- what host provider is the best one?
3.- what kind of hosting do you guys recommend for multisite, so it can function fast?