mmime - create MIME messages

MMIME(1) General Commands Manual MMIME(1)


mmime — create MIME messages


mmime [−c −r] [−t content-type] < message


mmime generates a ‘multipart/mixed’ message from the standard input, extending, wrapping, and encoding the header as necessary, and replacing lines in the message body of the form


#content-disposition ] path[
filename ]

with a MIME part having Content-Type content/type, consisting of the contents of the file found at path. content-disposition is optional and defaults to ‘attachment’. filename is optional and defaults to the basename of path.

The options are as follows:


Check mode: don’t output anything, exit with status 1 if MIME-encoding the message is required, or else exit with status 0.


Raw mode: don’t expand MIME parts in the body, generate a ‘text/plain’ message.

−t content-type

Override Content-Type for the toplevel part. Defaults to ‘multipart/mixed’.


The mmime utility exits 0 on success, and >0 if an error occurs.


makemime(1), mhbuild(1)

N. Freed


N. Borenstein ,
Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies
RFC 2045 ,
November 1996 .

N. Freed


N. Borenstein ,
Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types
RFC 2046 ,
November 1996 .

K. Moore


MIME (Multipurpose Internet Mail Extensions) Part Three: Message Header Extensions for Non-ASCII Text ,
RFC 2047 ,
November 1996 .

N. Freed


K. Moore ,
MIME Parameter Value and Encoded Word Extensions: Character Sets, Languages, and Continuations
RFC 2231 ,
November 1997 .

P. Resnick (ed.)


Internet Message Format ,
RFC 5322 ,
October 2008 .


Leah Neukirchen <[email protected]>


mmime is in the public domain.

To the extent possible under law, the creator of this work has waived all copyright and related or neighboring rights to this work. GNU July 22, 2016 MMIME(1)

Updated 2024-01-29 - |