Which extension and how are you testing this?

Easysocial and the activation emails are not sending and im pretty sure other notification emails are not sending

Just tried your site and your SMTP settings is incorrect. Please see the error message here, http://screencast.com/t/4yFcggSOnEI

hmmm thats weird they told me they were correct. will look into this

If it's fine, Joomla wouldn't actually report such errors

message from my hosting

Well according to the error you have not turned on your email authentication

1. This has nothing to do with any of our extensions.
2. I have configured this for you in Joomla's Global Configuration.
3. Once i enabled the SMTP authentication in Joomla, I am receiving the email now, http://screencast.com/t/zB4IHboGdw

oh so it is now working?

Yes, you can test it yourself

ok i will have to wait and see if it works from a msn, outlook or aol account when a user tries. Because those have not been working

I don't have an account from those email providers. You should try registering one But if it works for my echo.my gmail domain, then it should work for the rest. If it doesn't, then you should check this with your SMTP email provider as there is nothing we can do to fix it.

ok thanks a lot guys

No problem