No it doesn’t have a problem with IMAP SSL, it just doesn’t scan it, it is Secure Encrypted email and the purpose of said encryption is to stop access to it.
You will need to use a third party tool STunnel to act as an interface to allow avast to scan it before (or after) encryption, but before it arrives in your inbox.
Always worth it to ensure that your email is protected, that is still how the majority of viruses are distributed.
Take one step at a time, do one machine, a while later do another, I bet it doesn’t take as long the next time and the next and before you know it done ;D
DavidR, I meant it’s not worth doing SSL. I’ll just turn off SSL so that I can scan with Avast without having to go through installing that extra software.