David,
I would say that it is a similar way of storage.

I just feel very hesitant to use Avast again if this is what will happen when I scan my PC again and it finds a virus in my inbox. Any ideas of how I should handle it in the future? Just ignore the warning and try to find the infected email and delete it? If I didn’t know better I would say that it is a bug in the program that allows this to happen. Don’t you think?

Thanks for the responses!