mailcap

# First line is for attachment opening
text/html; /usr/bin/firefox %s >/dev/null 2>&1 &; needsterminal
# text/html; lynx %s; nametemplate=%s.html

# Second line is for auto_view
# text/html; lynx -dump %s; nametemplate=%s.html; copiousoutput
text/html; elinks -dump %s; nametemplate=%s.html; copiousoutput

# application/pdf;  mkdir -p /tmp/mutt \; cp %s /tmp/mutt \; evince /tmp/mutt/$(basename %s) > /dev/null 2>&1 &

# Open everything in background using xdg-open
# Source: 
# https://unix.stackexchange.com/questions/65381/how-to-tell-mutt-not-to-wait-for-an-attachment-program-to-return
application/*; mkdir -p /tmp/mutt \; cp %s /tmp/mutt \; xdg-open /tmp/mutt/$(basename %s)  &
image/*; mkdir -p /tmp/mutt \; cp %s /tmp/mutt \; xdg-open /tmp/mutt/$(basename %s)  &

text/calendar; printics %s; needsterminal