I think you need to make sure that you have a ".muttrc" file inside your own profile. so if you login as yourself and copy the contents or root's ".muttrc" to your own.
Code:
touch ~/.muttrc ; sudo cat /root/.muttrc > ~/.muttrc
the .muttrc should look something like this
Code:
set imap_user = "yourname@gmail.com"
set imap_pass = "YOUR-PASSWORD"
set smtp_url = "smtp://yourname@smtp.gmail.com:587/"
set smtp_pass = "YOUR-PASSWORD"
set from = "yourname@gmail.com"
set realname = "Your Name"
set folder = "imaps://imap.gmail.com:993"
set spoolfile = "+INBOX"
set postponed="+[Gmail]/Drafts"
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