+# DATA start, no pipelining
+#
+server PORT_S
+220 Server ready
+EHLO
+250-server id
+250 OK
+MAIL FROM
+250 OK
+RCPT TO
+250 OK
+DATA
+452 temporary error
+QUIT
+250 OK
+****
+exim -odi userx@x.y
+****
+# DATA end, no pipelining
+#
+server PORT_S
+220 Server ready
+EHLO
+250-server id
+250 OK
+MAIL FROM
+250 OK
+RCPT TO
+250 OK
+DATA
+352 GO AHEAD
+.
+452 temporary error
+QUIT
+250 OK
+****
+exim -odi userx@x.y
+****
+# MAIL, pipelining
+#
+server PORT_S
+220 Server ready
+EHLO
+250-server id
+250-PIPELINING
+250 OK
+MAIL FROM
+452 temporary error
+QUIT
+250 OK
+****
+exim -odi userx@x.y
+****
+# RCPT, pipelining
+#
+server PORT_S
+220 Server ready
+EHLO
+250-server id
+250-PIPELINING
+250 OK
+MAIL FROM
+250 OK
+RCPT TO
+452 temporary error
+QUIT
+250 OK
+****
+exim -odi userx@x.y
+****
+# DATA start, pipelining
+#
+server PORT_S
+220 Server ready
+EHLO
+250-server id
+250-PIPELINING
+250 OK
+MAIL FROM
+250 OK
+RCPT TO
+250 OK
+DATA
+452 temporary error
+QUIT
+250 OK
+****
+exim -odi userx@x.y
+****
+# DATA end, pipelining
+#
+server PORT_S
+220 Server ready
+EHLO
+250-server id
+250-PIPELINING
+250 OK
+MAIL FROM
+250 OK
+RCPT TO
+250 OK
+DATA
+352 GO AHEAD
+.
+452 temporary error
+QUIT
+250 OK
+****
+exim -odi userx@x.y
+****
+# lost connection
+#
+server PORT_S
+220 Server ready
+EHLO
+250-server id
+250-PIPELINING
+250 OK
+MAIL FROM
+250 OK
+RCPT TO
+****
+exim -odi userx@x.y
+****