Watchguard Firebox X20E Reference Manual page 18

Mime content types list
application/vnd.wt.stf
application/vnd.xara
application/vnd.yellowriver-custom-menu
application/wita
application/wordperfect5.1
application/x-alpha-form
application/x-asap
application/x-bcpio
application/x-chat
application/x-cpio
application/x-csh
application/x-director
application/x-dvi
application/x-framemaker
application/x-gtar
application/x-koan
application/x-latex
application/x-mif
application/x-net-install
application/x-ns-proxy-autoconfig
application/x-oleobject
application/x-olescript
application/x-p3d
application/x-pcn
application/x-pdf
application/x-perl
application/x-pn-realaudio
application/x-pointplus
application/x-rad-powermedia
application/x-sh
application/x-shar
application/x-sprite
application/x-stuffit
application/x-tar
application/x-tcl
application/x-tex
application/x-texinfo
application/x-troff
application/x-troff-man
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Wang Info. Transfer Format (Wang)
WordPerfect 5.1 document
Specialized data entry forms
ASAP WordPower
Old CPIO format
Interactive chat (Ichat)
POSIX CPIO format
UNIX c-shell program
Macromedia Shockwave
TeX dvi format
FrameMaker Documents (Frame)
Gnu tar format
Koan music data (SSeyo)
LaTeX document
Maker Interchange Format (FrameMaker)
Net Install (20/20 Software)
Autoconfiguration (Netscape)
OLE Object
OLE script e.g., Visual Basic
Play3D 3-D scene data (Play3D)
Pointcast news data
Adobe Acrobat PDF
Perl program
Realaudio (Progressive Networks)
PointPlus presentation data
PowerMedia multimedia
UNIX bourne shell program
UNIX sh shell archive
Sizzler real-time video/animation
Macintosh Stuffit Archive
4.3BSD TAR format
Tcl (Tool Control Language) program
TeX/LaTeX document
GNU TexInfo document
Troff document
Troff document with MAN macros