reformime(1)

NAME

   reformime - MIME E-mail reformatting tool

SYNOPSIS

   reformime [options...]

DESCRIPTION

   reformime is a utility for reformatting MIME messages.

   Generally, reformime expects to see an RFC 2045[1] compliant message on
   standard input, except in few cases such as the -m option.

   If no options are given, reformime prints the MIME structure of the
   message. The output consists of so-called "MIME reference tags", one
   per line. For example:

       1
       1.1
       1.2

   This shows that the message contains two different MIME sections. The
   first line of the MIME structure output will always contain "1", which
   refers to the entire message. In this case it happens to be a
   multipart/mixed message. "1.1" refers to the first section of the
   multipart message, which happens to be a text/plain section. "1.2"
   refers to the second section of the message, which happens to be an
   application/octet-stream section.

   If the message is not a MIME message, or it does not contain any
   attachments, reformime prints only "1", that refers to the entire
   message itself:

       1

   Here's the output from reformime when the first part of the message was
   itself a multipart/alternative section:

       1
       1.1
       1.1.1
       1.1.2
       1.2

   Arbitrarily complex MIME constructs are possible.

OPTIONS

   -d
       Parse a delivery status notification MIME message (RFC 1894[2]).
       reformime expects to see on standard input a MIME message that
       consists of a delivery status notification, as defined by RFC 1894.
       reformime reads the message and prints on standard output a list of
       addresses and their corresponding delivery status, as specified in
       the delivery status notification. Each line printed by reformime
       consists of a delivery status, a space, and the address.  reformime
       then terminates with a 0 exit status.  reformime produces no output
       and terminates with an exit status of 1 if the standard input does
       not contain a delivery status notification.

   -D
       Like the -d except that reformime lists the address found in the
       Original-Recipient: header, if it exists.

   -e
       Extract the contents of the indicated MIME section, and display it
       on standard output. The -s option is required when -e is specified.
       If the specified section or sections use either the base64 or
       quoted-printable encoding method, reformime automatically decodes
       it. In this case you're better off redirecting the standard output
       into a file.

   -i
       Display MIME information for each section.  reformime displays the
       contents of the Content-Type: header, any encoding used, and the
       character set.  reformime also displays the byte offset in the
       message where each section starts and ends (and where the actual
       contents of the section start, after skipping all the headers).

   -m
       Create a multipart/digest MIME message digest.

   -r
       Rewrite message, adding or standardizing RFC 2045[1] MIME headers.

   -r7
       Like -r but also convert 8bit-encoded MIME sections to
       quoted-printable.

   -r8
       Like -r but also convert quoted-printable-encoded MIME sections to
       8bit.

   -s section
       Display MIME information for this section only.  section is a MIME
       specification tag. The -s option is required if -e is also
       specified, and is optional with -i.

       Multiple sections may be specified by separating them with commas.
       reformime processes each section using the other options that were
       specified.

   -x
       Extract the contents of the indicated MIME section to a file.

   -X
       Pipe the contents of the indicated MIME section to a program.

   Extracting RFC 2045 MIME section(s) to file(s)
   The -x and -X options extract a specific MIME section to a file or to a
   pipe to an external program. Use the -s option to identify the MIME
   section to extract. If the -s option is not specified, every MIME
   section in the message is extracted, one at a time. If -s lists
   multiple sections, each section gets extracted separately.
   quoted-printable and base64 encoding are automatically decoded.

   -x
       Interactive extraction.  reformime prints the MIME content type of
       each section. Answer with 'y' or 'Y' to extract the MIME section.
       Specify the filename at the next prompt.  reformime prompts with a
       default filename.  reformime tries to choose the default filename
       based on the MIME headers, if possible. If not, the default
       filename will be attachment1.dat (if the -s option is not
       specified, the next filename will be attachment2.dat, and so on).

   -xPREFIX
       Automatic extraction.  reformime automatically extracts one or more
       MIME sections, and saves them to a file. The filename is formed by
       taking PREFIX, and appending the default filename to it. Note that
       there's no space between "-x" and "PREFIX". For example:

           reformime -xfiles-
       This command saves MIME sections as files-attachment1.dat, then
       files-attachment2.dat, etc.  reformime tries to append the filename
       specified in the MIME headers for each section, where possible.
       reformime replaces all suspect characters with the underscore
       character.

   -X prog arg1 arg2 ...
       The -X option must be the last option to reformime.  reformime runs
       an external program prog, and pipes the contents of the MIME
       section to the program.  reformime sets the environment variable
       CONTENT_TYPE to the MIME content type. The environment variable
       FILENAME gets set to the default filename of reformime's liking. If
       the -s option is not specified, the program runs once for every
       MIME section in the message. The external program, prog must
       terminate with a zero exit status in order for reformime to proceed
       to the next MIME section in the message (or the next section
       specified by -s). In any case, if prog terminates with a non-zero
       exit status, reformime terminates with the exit status of 20 plus
       prog's exit status.

       Note
       reformime extracts every MIME section in the message unless the -s
       option is specified. This includes even the text/plain MIME content
       that usually precedes a binary attachment.

   Adding RFC 2045 MIME headers
   The -r option performs the following actions:

   If there is no Mime-Version:, Content-Type:, or
   Content-Transfer-Encoding: header, reformime adds one.

   If the Content-Transfer-Encoding: header contains 8bit or raw, but only
   seven-bit data is found, reformime changes the
   Content-Transfer-Encoding header to 7bit.

   -r7 does the same thing, but also converts 8bit-encoded content that
   contains eight-bit characters to quoted-printable encoding.

   -r8 does the same thing, but also converts quoted-printable-encoded
   content to 8bit, except in some situations.

   Creating multipart/digest MIME digests
   The -m option creates a MIME digest.  reformime reads a list of
   filenames on standard input. Each line read from standard input
   contains the name of a file that is presumed to contain an RFC
   2822-formatted message.  reformime splices all files into a
   multipart/digest MIME section, and writes it to standard output.

   Translating MIME headers
   The following options do not read a message from standard input. These
   options process MIME headers via the command line, and are designed to
   be conveniently used by mail-handling scripts.

   -h "header"
       Decode a MIME-encoded "header" and print the decoded 8-bit content
       on standard output. The decoding gets carried out as if the
       contents occurred in the "Subject" header. Example:

           $ reformime -h '=?iso-8859-1?Q?H=F3la!?='
           Hla!

   -H "header"
       Like -h except that header is parsed as a list of email addresses,
       like "From" or "To".

   -o "text"
       MIME-encode "text", and print the results on standard output.

   -O "text"
       Like the -o option, except that text is a structured header with
       RFC 2822 addresses.

   -c "charset"
       Use charset as the character set setting, by the -h, -H, -o and -O
       options.

   -u
       This "undocumented" option reads a MIME message on standard input,
       and converts its contents to an UTF-8-encoded character stream,
       which is written to standard output.

       The standard output receives a concatenated amalgam of the headers
       and "text" MIME object data. It is meant to be used as part of a
       generic search function. This option decodes various kinds of
       header MIME encoding, the quoted-printable and base64 transfer
       encodings of "text" MIME objects.

SEE ALSO

   reformail(1)[3], sendmail(8), mailbot(1)[4], maildrop(1)[5],
   maildropfilter(5)[6], egrep(1), grep(1), sendmail(8).

AUTHOR

   Sam Varshavchik
       Author

NOTES

    1. RFC 2045
       http://www.rfc-editor.org/rfc/rfc2045.txt

    2. RFC 1894
       http://www.rfc-editor.org/rfc/rfc1894.txt

    3. reformail(1)
       [set $man.base.url.for.relative.links]/reformail.html

    4. mailbot(1)
       [set $man.base.url.for.relative.links]/mailbot.html

    5. maildrop(1)
       [set $man.base.url.for.relative.links]/maildrop.html

    6. maildropfilter(5)
       [set $man.base.url.for.relative.links]/maildropfilter.html

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