220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000
250-myhost.test.ex Hello CALLER at x.y.z
250-SIZE 52428800
250-8BITMIME
250-PIPELINING
250-AUTH PLAIN
250 HELP
504 rhubarb authentication mechanism not supported
504 rhubarb authentication mechanism not supported
504 rhubarb authentication mechanism not supported
504 rhubarb authentication mechanism not supported
554 Too many nonmail commands