Does GoodCrypto Mail work with web based email?

Yes, if you control the mail server

If your company uses web based email package and manages its own mail servers, then you can use GoodCrypto Email. If you use public web based email, such as GMail or Yahoo, then you won't be able to use Mail.

Of course, if your contacts use a public web based mail, then you can still exchange email with them. It will be hard for those contacts to exchange private messages because of the hassles of most encryption solutions.