$NetBSD: patch-opendkim_opendkim.conf.5,v 1.1 2023/04/21 13:03:09 manu Exp $

Add OmitHeadersDB directive to specify file containing per-recipient 
list of headers to not use in signature. The file format is:

user@doamin.tld	header1,header2,header3
domain.tld	header4,header5

From upstream https://github.com/trusteddomainproject/OpenDKIM/pull/173

--- opendkim/opendkim.conf.5.in.orig
+++ opendkim/opendkim.conf.5.in
@@ -619,6 +619,15 @@ default; for example, "*,+foobar" will use the entire default list plus
 the name "foobar", while "*,-Bcc" would use the entire default list except
 for the "Bcc" entry.
 
+.TP
+.I OmitHeadersDB (string)
+Specify a file containing a per-recipient list of headers to omit 
+when generating signatures. Return-Path, Received, Comments, and
+Keywoard are implicitely added to the list. The file should have
+two columns : a recipient as user@domain.tld or domain.tld, and 
+a comma-separated lis of headers to omit. For example 
+"list@example.net Subject,Bcc"
+
 .TP
 .I On-BadSignature (string)
 Selects the action to be taken when a signature fails to validate.