Add list of RFCs to the README.

diff --git a/README.md b/README.md
index 8edc7898ec9c06e024577bf9679e2db1e0dd1d05..e95722894ac0eb299a0550275a654c8f09611b64 100644 (file)
--- a/README.md
+++ b/README.md
@@ -3,3 +3,11 @@
 Mailpopbox is a combination delivery SMTP server and POP mailbox. The purpose is to act as a
 catch-all delivery server for an MX domain. All messages that it receives are deposited into a
 single mailbox, which can then be accessed using the POP3 protocol.
+
+## RFCs
+
+This server implements the following RFCs:
+
+- [Post Office Protocol - Version 3, RFC 1939](https://tools.ietf.org/html/rfc1939)
+- [Simple Mail Transfer Protocol, RFC 5321](https://tools.ietf.org/html/rfc5321)
+- [SMTP Service Extension for Secure SMTP over Transport Layer Security, RFC 3207](https://tools.ietf.org/html/rfc3207)