LOG: smtp_connection MAIN
  SMTP connection from CALLER
LOG: MAIN
  <= CALLER@myhost.test.ex U=CALLER P=local-smtp S=sss
delivering 10HmaX-0005vi-00
Connecting to 127.0.0.1 [127.0.0.1]:PORT_S ...  connected
  SMTP<< 220 Welcome
  SMTP>> EHLO myhost.test.ex
  SMTP<< 250 Hi
  SMTP>> MAIL FROM:<CALLER@myhost.test.ex>
  SMTP<< 250 OK
  SMTP>> RCPT TO:<def@pqr>
  SMTP<< 250 OK
  SMTP>> DATA
  SMTP<< 354 SEND
  SMTP>> (writing message)
  SMTP(close)>>
cmdlog: '220:EHLO:250:MAIL:250:RCPT:250:DATA:354'
LOG: MAIN
  H=127.0.0.1 [127.0.0.1]: SMTP timeout after sending data block (ddd bytes written): Connection timed out
LOG: MAIN
  == def@pqr R=r1 T=t1 defer (dd): Connection timed out H=127.0.0.1 [127.0.0.1]: SMTP timeout after sending data block (ddd bytes written)
LOG: smtp_connection MAIN
  SMTP connection from CALLER D=qqs closed by QUIT