--- /dev/null
+220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
+250-the.local.host.name Hello CALLER at a.b.c\r
+250-SIZE 52428800\r
+250-ETRN\r
+250-PIPELINING\r
+250-AUTH PLAIN\r
+250 HELP\r
+501 invalid character in authentication mechanism name\r
+235 Authentication succeeded\r
+503 already authenticated\r
+501 invalid data for AUTH\r
+221 the.local.host.name closing connection\r
+220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000\r
+250-the.local.host.name Hello CALLER at a.b.c\r
+250-SIZE 52428800\r
+250-ETRN\r
+250-PIPELINING\r
+250-AUTH PLAIN\r
+250 HELP\r
+250 OK\r
+503 not permitted in mail transaction\r
+221 the.local.host.name closing connection\r