Advertise SMTPUTF8 and 8BITMIME extensions in EHLO.

Fixes potential interoperability issues when the real MTA
supports those extensions.  From Arnt Gulbrandsen, OK benno@

diff --git a/libexec/spamd/spamd.c b/libexec/spamd/spamd.c
index f2f19b3..1be4c4b 100644 (file)
--- a/libexec/spamd/spamd.c
+++ b/libexec/spamd/spamd.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: spamd.c,v 1.161 2023/09/05 16:01:58 jca Exp $ */
+/*     $OpenBSD: spamd.c,v 1.162 2024/04/01 21:09:44 millert Exp $     */
 
 /*
  * Copyright (c) 2015 Henning Brauer <henning@openbsd.org>
@@ -845,6 +845,8 @@ nextstate(struct con *cp)
                                    match(cp->ibuf, "EHLO")) {
                                        snprintf(cp->obuf, cp->osize,
                                            "250-%s\r\n"
+                                           "250-8BITMIME\r\n"
+                                           "250-SMTPUTF8\r\n"
                                            "250 STARTTLS\r\n",
                                            hostname);
                                        nextstate = 7;