turn off DEFNAMES and DNSRCH in hostsignature for old config file
compatibility

don't double-#define SMTP and QUEUE

fix bug causing host\!user to be parsed as one token

fix compilation problem when IDENTPROTO is not defined

fixes to handle null messages -- why did this break?

IPC mailers can take a colon-separated list of addresses; change map
functions to return an exit status (& do limited tempfailing); don't
dequote strings with spaces; accept BODY=8BITMIME; print fail

IPC mailers can take a colon-separated list of addresses; change map
functions to return an exit status (& do limited tempfailing); don't
dequote strings with spaces; accept BODY=8BITMIME; print failed addresses
in return messages; tweak DNS timeouts; many minor bug fixes

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document the -B flag

minor botch: use htons on ident port name

discard errors only on responses to responses to responses, not
responses to responses.

add e_bodytype and B queue line and -B flag for body type information

IDENT problem applies to HPUX as well as Ultrix

add e_bodytype

don't dequote if there would be spaces left -- they will be
replaced by the SpaceSub character

some first thoughts at a MAILB lookup

return status information from map lookups and from there from
rewrite; this allows higher level code to queue if the name server is down

set q_ruser when you send to a true human user

print a list of the bad addresses on returned email

let the $@ clause of an SMTP mailer be a colon separated list of
hosts; these will be searched like MX records

random cleanup -- nothing major

move IDENTPROTO #define into conf.h; default it off for ULTRIX

simplify and generalize OutChannel => stdout code

check for I/O errors on OutChannel

improve setproctitle info

avoid multiple error messages on wierd syntax like "From: <a"