GNU Mailutils
	General-Purpose Mail Package	Official GNU Software

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3.12.5 Scripting in mda

Mda can use global or per-user mail filters to decide whether to deliver the message, and where to deliver it. As of Mailutils version 3.14, such mail filters may be written in the following languages:

• Sieve See Sieve Language.
• Scheme
• Python

Mail filters to use are specified using ‘script’ configuration statement. The following meta-symbols can be used in its argument:

~

%h

Expands to the recipient home directory.

%u

Expands to the recipient user name.

By default, the filename extension decides which scripting language will be used. User can alter the choice using ‘language’ configuration statement. For example:

script {
  language python;
  pattern "~/.maidag-py-filter";
}