Send & Receive Basics:
1. If you can receive but not send then you have a bad SMTP configuration
2. If you can send but not receive you have a bad POP or IMAP configuration
3. Check Advanced settings for both receiving and sending- IMPORTANT
You can try re-entering info.
You can delete account and create a new one.
Using copy/paste can result in an extra space being added. Type carefully.
Check your Keychain for corruption.
Setup Windows Live Hotmail in Entourage as a POP account
<
http://tinyurl.com/cr8u3c>
Connecting Entourage to an Exchange Server from Home
<
http://tinyurl.com/6w9fv3>
Microsoft KB 931350: You cannot connect to your mailbox on Exchange Server
when you use Entourage for Mac
<
http://support.microsoft.com/kb/931350>
Hope this helps!