Name
formail
Synopsis
formail [options
]
Filter standard input into mailbox format. Useful for splitting mail digests or passing the contents of a mail file to another program, such as a spam filter, for additional processing. If no sender is apparent, provide the sender foo@bar. By default, escape bogus From lines with >.
Options
- +skip
Do not split first skip messages.
- -total
Stop after splitting total messages.
- -a headerfield
Append headerfield to header, unless it already exists. If header-field is Message-ID or Resent-Message-ID with no contents, generate a unique message ID.
- -A headerfield
Append headerfield whether or not it already exists.
- -b
Do not escape bogus From lines.
- -B
Assume that input is in BABYL rmail format.
- -c
When header fields are more than one line long, concatenate the lines.
- -d
Do not assume that input must be in strict mailbox format. This option disables recognition of the Content-Length field so you can split digests or use nonstandard mailbox formats.
- -D maxlen idcache
Remember old message IDs (in idcache, which will grow no larger than approximately maxlen). When splitting, refuse to output duplicate messages. Otherwise, return true on discovering a duplicate. With -r, look at the sender’s mail address instead of the message ID.
- -e
Allow messages to begin one immediately after the other; do not require empty space between them.
- -f
Do not edit non-mailbox-format lines. By default, formail prepends From to such lines.
- -i headerfield
Like -A, but rename each existing headerfield
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