E-mail not working at all!

Ok did the test email php on the wiki and that came through just fine. All my e-mails are not working:
activation/admin panel e-mail/forgot pass... they are all dead.

Please advise as you did not release a fix or solution for all the other posts having the same issue! Some of these customers have been waiting months without a clear answer. Please help.

I am using hostonnet.com as preferred host and having this email issue with them...