Right clicking on an entry in address in Address book doesn't have an option to copy only the email address. Also copying the email address from a message (right click->Copy this address) copies it with the name, e.g. "<John Doe> john@doe.com" It would be useful to have options to copy only the email address and/or only the name for the purpose of using the copied string in filter. Even better: additional option to directly right click and have an option "Use address as From/To/Cc/Subject/Tag filter"