Update S/MIME tool documentation

CLA: trivial

Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
MergeDate: Wed Apr 15 12:19:04 2026
(Merged from https://github.com/openssl/openssl/pull/30583)

diff --git a/doc/man1/openssl-smime.pod.in b/doc/man1/openssl-smime.pod.in
index 061f1f23fba7d6a6a4c673269bf50517a1e79557..498d0c57251faf1acf2ed9b43f26dd5fe0032538 100644 (file)
--- a/doc/man1/openssl-smime.pod.in
+++ b/doc/man1/openssl-smime.pod.in
@@ -54,8 +54,9 @@ I<recipcert> ...
 
 =head1 DESCRIPTION
 
-This command handles S/MIME mail. It can encrypt, decrypt, sign
-and verify S/MIME messages.
+This command handles S/MIME according to RFC 2311 (1998) with no CMS support. 
+It can encrypt, decrypt, sign and verify S/MIME 2.0 messages. For newer messages
+use the OpenSSL CMS tool.
 
 =head1 OPTIONS