Here's how to use aliases in the latest mutt.

[John J. Boyer]

Add the line source mailaliases (or whatever your alias file is called) to muttrc. This is covered in /usr/share/doc/mut 
under reference > variables.

Hope this helps,
John

-- 
John J. Boyer, President
AbilitiesSoft, Inc.
Email: john.boyer at abilitiessoft.org
website: http://www.abilitiessoft.org
Status: 501(C)(3) NONPROFIT
Location: Madison, Wisconsin, USA
Mission: developing assistive technology software and providing STEM services 
        that are available at no cost