add B option to set blank substitution character

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.

make network name configurable

Refuse to talk to yourself (i.e., reject HELO packets with your own name).
Add two thresholds -- option 'x' is the load average at which messages are
queued rather than delivered (default 12); option

Refuse to talk to yourself (i.e., reject HELO packets with your own name).
Add two thresholds -- option 'x' is the load average at which messages are
queued rather than delivered (default 12); option 'X' is the load average
at which incoming TCP connections are refused (default 25).

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4.2 release version

Delete "load limiting" for SMTP connections (a bad ethernet board can
hang up all incoming mail); use sfgets in collect (same reason); check
for I/O error in collect (from Bill Nowicki); switch date

Delete "load limiting" for SMTP connections (a bad ethernet board can
hang up all incoming mail); use sfgets in collect (same reason); check
for I/O error in collect (from Bill Nowicki); switch date format to
RFC822 style.

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Miscellaneous changes for PDP-11's.
Always send to a login name before a full name.

lint

clean up problems when QUEUE compile flag not defined; clean up hostname
code to run on non-4.1c systems; fix use of -oeq (quiet on errors) flag.

$e macro is now SMTP entry message (so that configuration version can
be included).

Make mailer size limits a per-mailer parameter (M field in the mailer
descriptor)

implement classes and mailer flags as a bit map; define new class 'w'
as the set of all hosts we are known by

fix bug that caused "\r\n" string in TCP mailer definition to turn
into something else -- causing all TCP connections to hang.

make the maximum number of simultaneous SMTP connections an option

Change mailer spec to have labelled fields for future expansion.
**** This delta invalidates previous configuration files ****

split up FULLSMTP flag -- now have "X" (M_XDOT, use hidden dot algorithm),
"p" (M_FROMPATH, use reverse-path in MAIL FROM:<> command), and "L"
(M_LIMITS, enforce SMTP line limits). I would like to c

split up FULLSMTP flag -- now have "X" (M_XDOT, use hidden dot algorithm),
"p" (M_FROMPATH, use reverse-path in MAIL FROM:<> command), and "L"
(M_LIMITS, enforce SMTP line limits). I would like to change the format
of the mail defn one more time to make named fields so that it would
be more extensible.

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Many changes resulting from a complete code readthrough. Most of these
fix minor bugs or change the internal structure for clarity, etc. There
should be almost no externally visible changes (other

Many changes resulting from a complete code readthrough. Most of these
fix minor bugs or change the internal structure for clarity, etc. There
should be almost no externally visible changes (other than some cleaner
error message printouts and the like).

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lint it

run SMTP jobs in a subprocess so that multiple jobs will work. This
delta also changes the envelope data structure so that flags are in
a bit map, and adjusts some of the semantics. The transcript

run SMTP jobs in a subprocess so that multiple jobs will work. This
delta also changes the envelope data structure so that flags are in
a bit map, and adjusts some of the semantics. The transcript is now
local to an envelope. A bunch of old code is deleted. A serious bug
was fixed in the "run in background" code. Etc., etc.

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preliminary hacks for multiple SMTP transactions per connection: make
assignment of multiple queue id's more efficient, make prefixes two
characters (e.g., qfAA99999), pass the file name to freeze an

preliminary hacks for multiple SMTP transactions per connection: make
assignment of multiple queue id's more efficient, make prefixes two
characters (e.g., qfAA99999), pass the file name to freeze and thaw,
add a mailer flag saying we are talking to one of our own kind.

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split operation mode ("-bx" flag) and delivery mode ("d" option)
so that operation mode can apply to SMTP/daemon connections also.

Don't give an error message on unknown options

require an option to do auto-rebuild of alias database; allow new
operation modes to replace old ad hoc flags

don't flag errors in setting dangerous options when -C is used

Put temporary file mode on the F option