Package: mutt

"mutt" package binaries on CentOS:

/usr/bin/mutt /usr/bin/pgpewrap /usr/bin/pgpring /usr/bin/smime_keys

You may install this package on CentOS with yum install mutt

"mutt" package binaries on Debian:

/usr/bin/mutt_dotlock /usr/bin/mutt-org /usr/bin/smime_keys

You may install this package on Debian with apt-get install mutt