Email addresses inside URL

Question

Is it safe to use e-mail addresses inside URLs? I mean lets say a web-application has a registered user \"Bob\" and Bob has been registered by using his email => Bob@

Answer 1

I think that this is not a good idea. Firstly, email contains special chars that needs to be URL encoded so they don't get mixed up with system characters (for example, for FTP servers you can pass username like this ftp://user:pass@test.com).

Also, I would not like it from user perspective as in this case my e-mail would stay in browsers history.