cmd buf flush ddd bytes
SMTP<< 250 OK
SMTP(close)>>
+cmdlog: '220:EHLO:250:MAIL:250:RCPT:550:QUIT:250'
locking TESTSUITE/spool/db/callout.lockfile
locked TESTSUITE/spool/db/callout.lockfile
EXIM_DBOPEN: file <TESTSUITE/spool/db/callout> dir <TESTSUITE/spool/db> flags=O_RDWR|O_CREAT