--- /dev/null
+# recognizing IPv6 address in HELO/EHLO
+need_ipv6
+#
+# Incoming messages will be queued; deliver by queue run at the end.
+#
+exim -DSERVER=server -bd -oX PORT_D
+****
+client HOSTIPV6 PORT_D
+??? 220
+ehlo [HOSTIPV6]
+??? 250-
+??? 250-
+??? 250-
+??? 250
+mail from:<>
+??? 250
+rcpt to:<userx@test.ex>
+??? 250
+data
+??? 354
+To: userx@test.ex
+
+EHLO [HOSTIPV6]
+.
+??? 250
+ehlo [IPV6:HOSTIPV6]
+??? 250-
+??? 250-
+??? 250-
+??? 250
+mail from:<>
+??? 250
+rcpt to:<userx@test.ex>
+??? 250
+data
+??? 354
+To: userx@test.ex
+
+EHLO [IPV6:HOSTIPV6]
+.
+??? 250
+ehlo [IPV6:V6NET:0:12:1:a00:20ff:fe86:a062]
+??? 250-
+??? 250-
+??? 250-
+??? 250
+mail from:<>
+??? 250
+rcpt to:<userx@test.ex>
+??? 250
+data
+??? 354
+To: userx@test.ex
+
+EHLO [IPV6:V6NET:0:12:1:a00:20ff:fe86:a062]
+.
+??? 250
+ehlo HOSTIPV6
+??? 501
+quit
+??? 221
+****
+killdaemon
+# Wait for delivery process
+millisleep 500
+exim -q
+****