250-PIPELINING
250 HELP
SMTP<< mail from:<x@y>
+spool directory space = nnnnnK inodes = nnnnn check_space = 10240K inodes = 100 msg_size = 0
+log directory space = -1K inodes = -1 check_space = 10240K inodes = 100
SMTP>> 250 OK
SMTP<< rcpt to:<userx@test.ex>
processing "accept"