I'm having a problem with log parsing. I'm trying to take some
assumptions, I'd like you to correct or confirm them.
Field `H=' contains connecting host name. If host doesn't resolve and
HELO is given, there's the HELO name in parentheses. If HELO is given
and is different than connecting host, it's given in parentheses
regardless.
Does this sound any good? I'd like to retrieve HELO and resolved host
mask and know for sure when one of them is not present.
