GNU Mailutils |
|
General-Purpose Mail Package |
Official GNU Software |
This section summarizes the GNU extensions to the sieve language
GNU libmu_sieve understands the following multiline string syntax:
text:[-][delimiter] .... delimiter
The meaning of optional flags is the same as in shell “here document” construct: the dash strips all leading tab characters from the string body, thus allowing it to be indented in a natural fashion; delimiter introduces the new end-of-text delimiter instead of the default dot. If delimiter starts with a backslash, no preprocessing will be performed within a string.
require
statement.
require
appears
after a command other than require
. The GNU sieve library allows
interspersing the require
and other statements. The only
requirement is that require
must occur before a statement that is
using the required capability (see Require Statement).
header
test
The header
takes an optional argument :mime
, meaning to
scan the headers from each part of a multipart message.
size
test
The size
test allows to omit the optional argument
(:over|:under). In this case exact equality is assumed.
envelope
test
The only value that can be meaningfully used as the first required
argument of an envelope
test is ‘from’. This limitation
may disappear from the subsequent releases.
fileinto
action
The fileinto
action allows to specify permissions on the mailbox,
in case it will be created (see fileinto).
Along with the usual :is
, :matches
and :contains
matching type, GNU sieve library understands :regex
type. This
matching type toggles POSIX Extended Regular Expression matching.
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