+Connecting to 127.0.0.1 port 1225 ... connected
+??? 220
+<<< 220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000
+>>> ehlo tester
+??? 250-
+<<< 250-the.local.host.name Hello tester [127.0.0.1]
+??? 250-
+<<< 250-SIZE 52428800
+??? 250-
+<<< 250-8BITMIME
+??? 250-
+<<< 250-PIPELINING
+??? 250-CHUNKING
+<<< 250-CHUNKING
+??? 250 HELP
+<<< 250 HELP
+>>> mail from:someone@some.domain
+??? 250
+<<< 250 OK
+>>> rcpt to:CALLER@the.local.host.name
+??? 250
+<<< 250 Accepted
+>>> bdat 88 last
+>>> To: Susan@random.com
+>>> From: Sam@random.com
+>>> Subject: This is a bodyless test message
+>>>
+??? 250-
+<<< 250- 88 byte chunk, total 88
+??? 250
+<<< 250 OK id=10HmaX-0005vi-00
+>>> quit
+??? 221
+<<< 221 the.local.host.name closing connection
+End of script
+Connecting to 127.0.0.1 port 1225 ... connected
+??? 220
+<<< 220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000
+>>> ehlo tester
+??? 250-
+<<< 250-the.local.host.name Hello tester [127.0.0.1]
+??? 250-
+<<< 250-SIZE 52428800
+??? 250-
+<<< 250-8BITMIME
+??? 250-
+<<< 250-PIPELINING
+??? 250-
+<<< 250-CHUNKING
+??? 250
+<<< 250 HELP
+>>> mail from:someone@some.domain
+??? 250
+<<< 250 OK
+>>> rcpt to:CALLER@the.local.host.name
+??? 250
+<<< 250 Accepted
+>>> bdat 100
+>>> To: Susan@random.com
+>>> From: Sam@random.com
+>>> Subject: This is a bodyfull test message
+>>>
+>>> 1234567890
+??? 250
+<<< 250 100 byte chunk received
+>>> noop
+??? 250
+<<< 250 OK
+>>> bdat 0 last
+??? 250-
+<<< 250- 0 byte chunk, total 100
+??? 250
+<<< 250 OK id=10HmaY-0005vi-00
+>>> mail from:someone@some.domain
+??? 250
+<<< 250 OK
+>>> rcpt to:CALLER@the.local.host.name
+??? 250
+<<< 250 Accepted
+>>> bdat 10
+>>> To: Susan@bdat 78 last
+??? 250
+<<< 250 10 byte chunk received
+>>> random.com
+>>> From: Sam@random.com
+>>> Subject: This is a bodyless test message
+>>>
+??? 250-
+<<< 250- 78 byte chunk, total 88
+??? 250
+<<< 250 OK id=10HmaZ-0005vi-00
+>>> quit
+??? 221
+<<< 221 the.local.host.name closing connection
+End of script
+Connecting to 127.0.0.1 port 1225 ... connected
+??? 220
+<<< 220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000
+>>> ehlo tester
+??? 250-
+<<< 250-the.local.host.name Hello tester [127.0.0.1]
+??? 250-
+<<< 250-SIZE 52428800
+??? 250-
+<<< 250-8BITMIME
+??? 250-
+<<< 250-PIPELINING
+??? 250-
+<<< 250-CHUNKING
+??? 250
+<<< 250 HELP
+>>> mail from:someone@some.domain
+??? 250
+<<< 250 OK
+>>> rcpt to:CALLER@the.local.host.name
+??? 250
+<<< 250 Accepted
+>>> bdat 89 last
+>>> To: Susan@random.com
+>>> From: Sam@random.com
+>>> Subject: This is a bodyless test message
+>>>
+??? 421
+<<< 421 the.local.host.name SMTP incoming data timeout - closing connection.
+End of script
+Connecting to 127.0.0.1 port 1225 ... connected
+??? 220
+<<< 220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000
+>>> ehlo tester
+??? 250-
+<<< 250-the.local.host.name Hello tester [127.0.0.1]
+??? 250-
+<<< 250-SIZE 52428800
+??? 250-
+<<< 250-8BITMIME
+??? 250-
+<<< 250-PIPELINING
+??? 250-
+<<< 250-CHUNKING
+??? 250
+<<< 250 HELP
+>>> mail from:someone@some.domain
+??? 250
+<<< 250 OK
+>>> rcpt to:CALLER@the.local.host.name
+??? 250
+<<< 250 Accepted
+>>> bdat 88
+>>> To: Susan@random.com
+>>> From: Sam@random.com
+>>> Subject: This is a bodyless test message
+>>>
+??? 250
+<<< 250 88 byte chunk received
+>>> bdat 0
+??? 504
+<<< 504 zero size for BDAT command
+>>> quit
+??? 221
+<<< 221 the.local.host.name closing connection
+End of script
+Connecting to 127.0.0.1 port 1225 ... connected
+??? 220
+<<< 220 the.local.host.name ESMTP Exim x.yz Tue, 2 Mar 1999 09:44:33 +0000
+>>> ehlo tester
+??? 250-
+<<< 250-the.local.host.name Hello tester [127.0.0.1]
+??? 250-
+<<< 250-SIZE 52428800
+??? 250-
+<<< 250-8BITMIME
+??? 250-
+<<< 250-PIPELINING
+??? 250-
+<<< 250-CHUNKING
+??? 250
+<<< 250 HELP
+>>> mail from:someone@some.domain
+??? 250
+<<< 250 OK
+>>> rcpt to:CALLER@the.local.host.name
+??? 250
+<<< 250 Accepted
+>>> bdat 88
+>>> To: Susan@random.com
+>>> From: Sam@random.com
+>>> Subject: This is a bodyless test message
+>>>
+??? 250
+<<< 250 88 byte chunk received
+>>> data
+??? 503
+<<< 503 only BDAT permissible after non-LAST BDAT
+>>> RSET
+??? 250
+<<< 250 Reset OK
+>>> EHLO tester
+??? 250-
+<<< 250-the.local.host.name Hello tester [127.0.0.1]
+??? 250-
+<<< 250-SIZE 52428800
+??? 250-
+<<< 250-8BITMIME
+??? 250-
+<<< 250-PIPELINING
+??? 250-
+<<< 250-CHUNKING
+??? 250
+<<< 250 HELP
+>>> mail from:someone@some.domain
+??? 250
+<<< 250 OK
+>>> rcpt to:CALLER@the.local.host.name
+??? 250
+<<< 250 Accepted
+>>> bdat 88
+>>> To: Susan@random.com
+>>> From: Sam@random.com
+>>> Subject: This is a bodyless test message
+>>>
+??? 250
+<<< 250 88 byte chunk received
+>>> data
+??? 503
+<<< 503 only BDAT permissible after non-LAST BDAT
+>>> data
+??? 503
+<<< 503 only RSET accepted now
+>>> quit
+??? 221
+<<< 221 the.local.host.name closing connection
+End of script