Used Grime Buster now I can't send or receive emails

I just used the Grime Buster and now my email programme on my laptop won’t send or receive emails. I run Windows 7 and I use Outlook for my emails. I cannot see anything different with the settings. There is no problem with the server because friends are receiving emails from the same internet provider just fine, and I am getting emails to my phone. I should have learned my lesson. Last time I used the programme, it completely messed up Internet Explorer and despite the Avast telling me how to resolve it, I could not, and so now I use a different internet browser.

Does anyone have a fix for this please?
Thank you.

The tool is called GrimeFighter, please post in the Grimefighter Sub Forum here: https://forum.avast.com/index.php?board=63.0