**** SMTP testing session as if from host 1.2.3.4 **** but without any ident (RFC 1413) callback. **** This is not for real! 220 myhost.test.ex ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000 250-myhost.test.ex Hello a.b.c.d [1.2.3.4] 250-SIZE 52428800 250-8BITMIME 250-PIPELINING 250 HELP 250 OK 451 >all relevant MX records point to non-existent hosts< ++++ 221 myhost.test.ex closing connection