11.7 How do I make Emacs automatically start my mail/news reader?

To start Emacs in Gnus:

emacs -f gnus

in Rmail:

emacs -f rmail

A more convenient way to start with Gnus:

alias gnus 'emacs -f gnus'

It is probably unwise to automatically start your mail or news reader from your init file. This would cause problems if you needed to run two copies of Emacs at the same time. Also, this would make it difficult for you to start Emacs quickly when you needed to.