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-rw-r--r--lib/smtp.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/smtp.c b/lib/smtp.c
index 36ad58687..9643f8f9a 100644
--- a/lib/smtp.c
+++ b/lib/smtp.c
@@ -18,13 +18,14 @@
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
- * RFC2821 SMTP protocol
- * RFC3207 SMTP over TLS
- * RFC4954 SMTP Authentication
+ * RFC1870 SMTP Service Extension for Message Size
* RFC2195 CRAM-MD5 authentication
* RFC2831 DIGEST-MD5 authentication
+ * RFC3207 SMTP over TLS
* RFC4422 Simple Authentication and Security Layer (SASL)
* RFC4616 PLAIN authentication
+ * RFC4954 SMTP Authentication
+ * RFC5321 SMTP protocol
*
***************************************************************************/