I keep getting a pop up that says Avast has blocked access to mail.TWC.com(SMPT). How do I stop this from popping up?
attach a screenshot of the message se we can see all the info given (or write it here)
crop it so we see the message and not the entire desktop screen
see below the box you write in: Attachments and other options
The pop up says Avast has blocked access to mail.twc.com(SMPT) because one or more certificate has expired
A picture is worth 1000 words. 
Support and FAQ >> https://support.avast.com/
Searchword > certificate