Pigeonhole Sieve: Editheader Extension

Settings

sieve_editheader_forbid_add
  • Default: <empty>

  • Values: String

A space-separated list of headers that cannot be added to the message header.

Addition of the Subject: header cannot be prohibited, as required by the RFC specification. Therefore, adding this header to this setting has no effect.

sieve_editheader_forbid_delete
  • Default: <empty>

  • Values: String

A space-separated list of headers that cannot be deleted from the message header.

Deleting the Received: and Auto-Submitted: fields is always forbidden, while removing the Subject: header cannot be prohibited, as required by the RFC specification. Therefore, adding one of these headers to this setting has no effect.

sieve_editheader_max_header_size

The maximum size in bytes of a header field value passed to the addheader command.

Note

The minimum value for this setting is 1024 bytes.

sieve_editheader_protected
  • Default: <empty>

  • Values: String

A space-separated list of headers that cannot be added to or deleted from the message header.

This setting is provided for backwards compatibility.

It is a combination of the sieve_editheader_forbid_add and sieve_editheader_forbid_delete settings. The same limitations apply.