patch to clearenvelope to avoid dereferencing garbage pointers

don't duplicate original envelope into error envelope

DO use Ruleset 4 when defining $f -- it's very necessary (fix for <>
will have to be done in configuration); pretty up mailq -v slightly

deliver directly in SMTP if VERB command has been issued; don't
externalize name using ruleset 4 when defining $f macro: this turns "<>"
into "", which confuses local mail

don't include ctime as part of priority, since the value affects the results of
shouldqueue; we go back to adding ctime into the workcmpf in queue.c

clean up priority handling, making several of the parameters configurable:
y - WkRecipFact, z - WkClassFact, Z - WkTimeFact, Y - ForkQueueRuns; improve
process title labelling; finish "errors to post

clean up priority handling, making several of the parameters configurable:
y - WkRecipFact, z - WkClassFact, Z - WkTimeFact, Y - ForkQueueRuns; improve
process title labelling; finish "errors to postmaster" option

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fix botch in clearenvelope

updates to make it possible to run the queue in one process; this
permits a database of host status to be built

incorporate SMI changes -- still experimental

SMI changes (somewhat)

fix overzealous removal of df file

Resolve duplicate SccsId. Ifdef variables for TTYNAME code.

Add copyright

More changes from Bill Nowicki -- file closing and improved logging.

don't assume that all apparently local senders have passwd entries

Try to use flock call (this doesn't work because we don't always have an
open fd); security and performance fixes from Kirk Smith at Purdue; "a"
option is now the number of minutes to wait for "@:@"

Try to use flock call (this doesn't work because we don't always have an
open fd); security and performance fixes from Kirk Smith at Purdue; "a"
option is now the number of minutes to wait for "@:@" alias; fix bug in
$[ $] using -t; random cleanup

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Add $[ and $] as RHS operators to look up the contents and pass them
to maphostname; maphostname currently looks them up in /etc/hosts and
converts them to canonical form, but could be turned into a

Add $[ and $] as RHS operators to look up the contents and pass them
to maphostname; maphostname currently looks them up in /etc/hosts and
converts them to canonical form, but could be turned into a general
name server..... huzzah!!

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Changes from Greg Couch <ucsfcgl!gregc> for V7 compatibility and
miscellaneous bug fixes; "clear" => "bzero" and "bmove" => "bcopy"
throughout for consistency; bzero is now in bcopy.c (these are
supp

Changes from Greg Couch <ucsfcgl!gregc> for V7 compatibility and
miscellaneous bug fixes; "clear" => "bzero" and "bmove" => "bcopy"
throughout for consistency; bzero is now in bcopy.c (these are
supplied by libc on 4.2bsd)

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remove .mailcf hack -- it's been abused.

disable UPPER->lower case mapping in RHS's of aliases so that upper
case letters can be used in file names and as args to programs.

change macro expansion character from $ to \001 so that $'s can be
used in headers -- the .cf file is unchanged by mapping $ to \001.
\001 is now a manifest constant.

Don't print out a null pointer in debugging info.

4.2 release version

put true current time on SMTP greeting message; fix *(0) problems