501 sender address must contain a domain Transaction started in line 0 Error detected in line 1 mail from: userx 501 recipient address must contain a domain Transaction started in line 0 Error detected in line 2 rcpt to: userx 220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000 250 OK 501 userx: recipient address must contain a domain 503-All RCPT commands were rejected with this error: 503-501 userx: recipient address must contain a domain 503 valid RCPT command must precede DATA 500 unrecognized command 500 unrecognized command 500 unrecognized command 221 the.local.host.name closing connection 220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000 250 OK 250 Accepted 354 Enter message, ending with "." on a line by itself 250 OK id=10HmbE-0005vi-00 221 the.local.host.name closing connection 220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000 250 OK 250 Accepted 354 Enter message, ending with "." on a line by itself 250 OK id=10HmbF-0005vi-00 221 the.local.host.name closing connection