As far as I can tell, "Bell Mail" that you mention appears to be a standard POP/SMTP mail service with SSL. If you're having issues with the standard "Email" app on the Arc, you could try one of the alternatives such as:
K-9 mail
https://play.google.com/store/apps/d...id=com.fsck.k9
or
MailDroid
https://play.google.com/store/apps/d...1haWxkcm9pZCJd