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-rw-r--r--doc/doc-txt/experimental-spec.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/doc/doc-txt/experimental-spec.txt b/doc/doc-txt/experimental-spec.txt
index ce4edeb3d..0eeb939bf 100644
--- a/doc/doc-txt/experimental-spec.txt
+++ b/doc/doc-txt/experimental-spec.txt
@@ -1276,6 +1276,7 @@ SMTPUTF8
Internationalised mail name handling.
RFCs 6530, 6533, 5890
+Compile with libidn.
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