We need More Info Required
In order to help fully we need more information....
- What email program are you using?
- What was the error message, error number, etc?
- Are you running another AV or uninstalled one?
The more information you give us the more likely we are to be able to help, a screen shot of the error would be helpful.
Also see this thread for further information and advice
User's FAQ.
If you need more help, come back here with more info....