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authorJeremy Harris <jgh146exb@wizmail.org>2017-10-25 15:54:31 +0100
committerJeremy Harris <jgh146exb@wizmail.org>2017-10-25 16:06:18 +0100
commitd29c160fa7939ba75adbc4b16e208fc56972384f (patch)
treeb67332661ce9df5c7b4215146f996cd12c4d0798
parent8f8950c344cc3aa27efa0230519708aacc2de0fd (diff)
Docs: clarify DKIM default signing. Bug 2179
-rw-r--r--doc/doc-docbook/spec.xfpt14
1 files changed, 9 insertions, 5 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index d030ee238..a9a048ecb 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -23806,7 +23806,7 @@ of the message. Its value must not be zero. See also &%final_timeout%&.
.option dkim_private_key smtp string&!! unset
.option dkim_canon smtp string&!! unset
.option dkim_strict smtp string&!! unset
-.option dkim_sign_headers smtp string&!! per RFC
+.option dkim_sign_headers smtp string&!! "per RFC"
.option dkim_hash smtp string&!! sha256
.option dkim_identity smtp string&!! unset
DKIM signing options. For details see section &<<SECDKIMSIGN>>&.
@@ -38591,13 +38591,17 @@ either "1" or "true", Exim will defer. Otherwise Exim will send the message
unsigned. You can use the &%$dkim_domain%& and &%$dkim_selector%& expansion
variables here.
-.option dkim_sign_headers smtp string&!! see below
+.option dkim_sign_headers smtp string&!! "see below"
If set, this option must expand to a colon-separated
-list of header names. Headers with these names will be included in the message
-signature.
-When unspecified, the header names recommended in RFC4871 will be used.
+list of header names.
+.new
+Headers with these names, or the absence or such a header, will be included
+in the message signature.
+When unspecified, the header names listed in RFC4871 will be used,
+whether or not each header is present in the message.
The default list is available for the expansion in the macro
"_DKIM_SIGN_HEADERS".
+.wen
.section "Verifying DKIM signatures in incoming mail" "SECID514"