X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=doc%2Fdoc-txt%2Fexperimental-spec.txt;h=3b8a73428c454d4cf3a8e95a7420388a31ecdc2a;hb=2b2cfa838f206b5d97a120722861f42780bc6a6a;hp=373d9dc4c583b016fcefb6939ffaa8dfe7b6987a;hpb=30795c5e77e21e90f3c695e6274bc9b4a9b68900;p=user%2Fhenk%2Fcode%2Fexim.git

diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt
index 373d9dc4c..3b8a73428 100644
--- a/doc/doc-txt/experimental-spec.txt
+++ b/doc/doc-txt/experimental-spec.txt
@@ -585,6 +585,13 @@ identify the ADMD.  Messages should be ARC-verified on entry to the ADMD,
 and ARC-signed on exit from it.
 
 
+Building with ARC Support
+--
+Enable using EXPERIMENTAL_ARC=yes in your Local/Makefile.
+You must also have DKIM present (not disabled), and you very likely
+want to have SPF enabled.
+
+
 Verification
 --
 An ACL condition is provided to perform the "verifier actions" detailed