# @(#)samples/generic/transports	1.11 9/6/92 04:41:55

# This file defines the configuration of the transport subsystem as
# compiled into the smail binary.  By modifying the source files
# conf/EDITME, src/config.h or src/default.c the actual internal
# configuration can be changed.  Thus, this should be matched up
# against thes files before assuming this is completely correct.
#
# If a run-time transports file is created, then its entries will
# complement or replace the compiled-in transport entries.  Thus,
# contrary to use of the routers and directors files, you do not need
# to copy and localize this file in order to add new transports.
#
#
# IMPORTANT FOR INTERNET USERS
#
# The smtp, uucp_zone_smtp, inet_zone_smtp, and local_smtp transports
# should be configured to use the DNS for finding MX and A records,
# if the host was not resolved by the bind version of the inet_hosts
# router.  To configure this, uncomment the use_bind attributes on
# the various tcpsmtp-based transport definitions.
#
#
# IMPORTANT FOR SCO UNIX SYSTEMS
#
# Recent SCO UNIX systems use the MMDF file format.  If you wish to
# have smail generate this format, then comment out the unix_from_hack
# and the first suffix lines, in the "local" and "file" transports,
# and uncomment all lines that are commented with "MMDF mailbox format".
#
#
# IMPORTANT FOR SYSTEM V RELEASE 4 USERS
#
# The SVR4 mailx expects to find Content-Length header fields on
# messages.  If such a header is not found (or if a remote site
# supplies an incorrect Content-Length header), then mailx may split
# your mailbox file into messages at inappropriate boundaries.  To
# add a Content-Length field to messages appended to your mailbox
# files, and sent to shell-command or file addresses, uncomment all
# attributes that are indicated with "SVR4 mailbox format".  This
# will also ensure that you have a "Content-Type" field, defaulting
# the content type to "text".
#
# You will likely also wish to uncomment unix_from_hack from the
# local, pipe, and file transports, since prepending > to lines
# starting with From is not necessary with this the SVR4 mailbox
# format.  You can also comment out the suffix="\n" lines in the
# local, and file transports, since a blank line is not required
# between messages for the SVR4 mailbox format.
#
#
# IMPORTANT FOR USE WITH HoneyDanBer UUCP
#
# Systems with HoneyDanBer UUCP (for example, System V Release 4)
# can invoke uux with -a$sender -g$grade to cause UUCP errors to
# be mailed to the message sender, and to alter UUCP queue priorities
# based on Precedence header fields.  For SVR4, you should add the
# following to your /etc/uucp/Grades file:
#
#	9	9	Any	User	Any
#	A	A	Any	User	Any
#	C	C	Any	User	Any
#	a	a	Any	User	Any
#	n	n	Any	User	Any
#
# This is because the SVR4 HDB UUCP uses long message grade names
# on the uux command line, which are not supported by Smail.
#
#
# HANDLING TRANSIENT UUCP FAILURES
#
# Many systems seem to get failures from uux from time to time.  I
# guess this is load related.  Smail normally returns bounce messages
# in such situations.  However, generating a bounce message can be
# annoying if the failures are truly transient.
#
# The only way to handle this, if you encounter this often, is to
# make sure that your UUCP configuration doesn't have any conflicts
# with your smail configuration (which implies that uux should never
# fail for configuration-related errors).  Then, uncomment the
# defer_child_errors attribute in the various uux-based transports
# defined in this file.  This will cause smail to retry (at a later
# time) any failures encountered by executing uux.


# local - deliver mail to local users
#
# By default, smail will append directly to user mailbox files.
#
# IMPORTANT FOR SYSTEM V AND SCO USERS
#
# comment out the mode=0600 line below, and uncomment the mode=0660
# line, to get the correct mailbox file permissions for your system.
local:	driver=appendfile,		# append message to a file
	return_path,			# include a Return-Path: field
	from,				# supply a From_ envelope line
	unix_from_hack,			# insert > before From in body
					# comment out the above line for
					# MMDF mailbox format and for
					# use with the Content-Length
					# header fields.
# SVR4 mailbox format: uncomment the below 3 lines
#	remove_header="Content-Length",
#	append_header="${if !header:Content-Type :Content-Type: text}",
#	append_header="Content-Length: $body_size",
	local;				# use local forms for delivery

	file=/usr/spool/mail/${lc:user}, # location of mailbox files
#	file=/usr/mail/${lc:user},	# use this location for System V
#	group=mail,			# group to own file for System V
	mode=0600,			# For BSD: only the user can
					# read and write file
#	mode=0660,			# under System V, group mail can access
					# use this for SCO UNIX, as well
	suffix="\n",			# append an extra newline
					# comment out the above line for
					# MMDF mailbox format and for
					# use with the Content-Length
					# header fields.
	notify_comsat,			# notify comsat daemon of delivery
#	suffix="\1\1\1\1\n",		# MMDF mailbox format
#	prefix="\1\1\1\1\n",		# MMDF mailbox format

# local - an alternate local transport that calls on /bin/lmail
#
# Some systems have special local conventions for mail delivery that
# smail does not understand.  Such conventions may include adding
# special headers, or may include particular locking conventions.  For
# such systems, smail can use a system-provided program for delivery
# to user mailbox files.  On most systems, the /bin/mail program will
# perform mail delivery according to local conventions.  However,
# smail will often require that /bin/mail be replaced with a program
# that calls out to smail to perform delivery.  By convention, the
# original /bin/mail program should be saved to /bin/lmail.
#
# It may be necessary to modify this entry to operate within your
# local conventions.
#
# NOTE: If you wish to use this alternate local entry, you must
# comment out the regular local transport entry, and uncomment the
# entry below.
#local:	driver=pipe,			# call out to a program
#	return_path,			# include a Return-Path: field
#	local,				# use local forms for delivery
#	from,				# supply a From_ envelope line
#	-max_addrs;			# give multiple addresses to command
#
#	cmd="/bin/lmail $($user$)"

# pipe - deliver mail to shell commands
#
# This is used implicitly when smail encounters addresses which begin with
# a vertical bar character, such as "|/usr/lib/news/recnews talk.bizarre".
# The vertical bar is removed from the address before being given to the
# transport.
pipe:	driver=pipe,			# pipe message to another program
	return_path,			# include a Return-Path: field
	from,				# supply a From_ envelope line
	unix_from_hack,			# insert > before From in body
					# comment out the above line for
					# use with the Content-Length
					# header fields.
# SVR4 mailbox format: uncomment the below 3 lines
#	remove_header="Content-Length",
#	append_header="${if !header:Content-Type :Content-Type: text}",
#	append_header="Content-Length: $body_size",
	local;				# use local forms for delivery

	cmd="/bin/sh -c $user",	# send address to the Bourne Shell
	parent_env,			# environment info from parent addr
	pipe_as_user,			# use user-id associated with address
	ignore_status,			# ignore a non-zero exit status
	ignore_write_errors,		# ignore write errors, i.e., broken pipe
	umask=0022,			# umask for child process
	-log_output,			# do not log stdout/stderr

# file - deliver mail to files
#
# This is used implicitly when smail encounters addresses which begin with
# a slash or squiggle character, such as "/usr/info/list_messages" or
# perhaps "~/Mail/inbox".
file:	driver=appendfile,
	return_path,			# include a Return-Path: field
	from,				# supply a From_ envelope line
	unix_from_hack,			# insert > before From in body
					# comment out the above line for
					# MMDF mailbox format and for
					# use with the Content-Length
					# header fields.
# SVR4 mailbox format: uncomment the below 3 lines
#	remove_header="Content-Length",
#	append_header="${if !header:Content-Type :Content-Type: text}",
#	append_header="Content-Length: $body_size",
	local;				# use local forms for delivery

	file=$user,			# file is taken from address
	append_as_user,			# use user-id associated with address
	expand_user,			# expand ~ and $ within address
	suffix="\n",			# append an extra newline
					# comment out the above line for
					# MMDF mailbox format and for
					# use with the Content-Length
					# header fields.
	mode=0644,			# you may wish to change this
					# mode, depending upon local
					# conventions and preferences
#	suffix="\1\1\1\1\n",		# MMDF mailbox format
#	prefix="\1\1\1\1\n",		# MMDF mailbox format

# uux - deliver to the rmail program on a remote UUCP site
#
# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
uux:	driver=pipe,
	uucp,				# use UUCP-style addressing forms
	from,				# supply a From_ envelope line
	max_addrs=5,			# at most 5 addresses per invocation
#	max_addrs=1,			# use this if some of your neighbors
#					# can't handle multiple addresses
#					# given to their rmail.  You might,
#					# alternately, want to configure
#					# a uux_one_addr transport that
#					# does this.
	max_chars=200;			# at most 200 chars of addresses

	# the -r flag prevents immediate delivery, parentheses around the
	# $user variable prevent special interpretation by uux.
	cmd="/usr/bin/uux - -r $host!rmail $(($user)$)",
	#cmd="/usr/bin/uux - -r -a$sender -g$grade $host!rmail $(($user)$)",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error

# demand - deliver to a remote rmail program, polling immediately
#
# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
demand:	driver=pipe,
	uucp,				# use UUCP-style addressing forms
	from,				# supply a From_ envelope line
	max_addrs=5,			# at most 5 addresses per invocation
#	max_addrs=1,			# use this if some of your neighbors
#					# can't handle multiple addresses
#					# given to their rmail.  You might,
#					# alternately, want to configure
#					# a demand_one_addr transport that
#					# does this.
	max_chars=200;			# at most 200 chars of addresses

	# with no -r flag, try to contact remote site immediately
	cmd="/usr/bin/uux - $host!rmail $(($user)$)",
	#cmd="/usr/bin/uux - -a$sender -g$grade $host!rmail $(($user)$)",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error

# uusmtp - deliver to the rsmtp program on a remote UUCP site
#
# The rsmtp program is assumed to to take batched SMTP requests.
#
# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
uusmtp:	driver=pipe,
	uucp,				# use !-style addresses for routing
	bsmtp,				# send batched SMTP commands
	-max_addrs, -max_chars;		# no limit on number of addresses

	# supply -r to prevent immedate delivery, the recipient addresses
	# are stored in the data sent to the standard input of rsmtp.
	cmd="/usr/bin/uux - -r $host!rsmtp",
	#cmd="/usr/bin/uux - -r -a$sender -g$grade $host!rsmtp",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error

# demand_uusmtp - deliver to a remote rsmtp program, polling immediately
#
# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
demand_uusmtp:
	driver=pipe,
	uucp,				# use !-style addresses for routing
	bsmtp,				# send batched SMTP commands
	-max_addrs, -max_chars;		# no limit on number of addresses

	# with no -r flag, try to contact remote site immediately
	cmd="/usr/bin/uux - $host!rsmtp",
	#cmd="/usr/bin/uux - -a$sender -g$grade $host!rsmtp",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error

# inet_uusmtp, inet_demand_uusmtp - batched SMTP conforming to specification
#
# These transports specify that transmitted addresses will conform to
# the SMTP specification.  If a route is needed to deliver to a
# specified host, then route-addr addresses (@host1,@host2:user@destination)
# will be used.  This violates recommendations of RFC1123, but routes
# are not generally required in networks where RFC1123 recommendations
# fully apply.
#
# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
inet_uusmtp:
	driver=pipe,
	inet,				# use route-addr addresses for routing
	bsmtp,				# send batched SMTP commands
	-max_addrs, -max_chars;		# no limit on number of addresses

	# supply -r to prevent immedate delivery, the recipient addresses
	# are stored in the data sent to the standard input of rsmtp.
	cmd="/usr/bin/uux - -r $host!rsmtp",
	#cmd="/usr/bin/uux - -r -a$sender -g$grade $host!rsmtp",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error

# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
inet_demand_uusmtp:
	driver=pipe,
	inet,				# use route-addr addresses for routing
	bsmtp,				# send batched SMTP commands
	-max_addrs, -max_chars;		# no limit on number of addresses

	# with no -r flag, try to contact remote site immediately
	cmd="/usr/bin/uux - $host!rsmtp",
	#cmd="/usr/bin/uux - -a$sender -g$grade $host!rsmtp",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error

# smtp - deliver using SMTP over TCP/IP
#
# The below four drivers are configured in only if your system supports
# BSD socket networking.
#
# Connect to a remote host using TCP/IP and initiate an SMTP conversation
# to deliver the message.  The smtp transport is included only if BSD
# networking exists.
#
# The uucp attribute can be specified for transfers within the UUCP
# zone.  The inet attribute must be specified for transfers within the
# Internet.
#
# NOTE:	This is hardly optimal, a backend should exist which can handle
#	multiple messages per connection.
#
# ALSO:	It may be necessary to restrict max_addrs to 100, as this is the
#	lower limit SMTP requires an implementation to handle for one
#	message.
smtp:	driver=tcpsmtp,
	inet,				# if UUCP_ZONE is not defined
	#uucp,				# if UUCP_ZONE is defined
	-max_addrs, -max_chars;		# no limit on number of addresses

	short_timeout=5m,		# timeout for short operations
	long_timeout=2h,		# timeout for longer SMTP operations
	service=smtp,			# connect to this service port
# For internet use: uncomment the below 4 lines
#	use_bind,			# resolve MX and multiple A records
#	defnames,			# use standard domain searching
#	defer_no_connect,		# try again if the nameserver is down
#	-local_mx_okay,			# fail an MX to the local host

uucp_zone_smtp:
	driver=tcpsmtp,
	uucp,				# use !-style addresses for routing
	-max_addrs, -max_chars;		# no limit on number of addresses

	short_timeout=5m,		# timeout for short operations
	long_timeout=2h,		# timeout for longer SMTP operations
	service=smtp,			# connect to this service port
# For internet use: uncomment the below 4 lines
#	use_bind,			# resolve MX and multiple A records
#	defnames,			# use standard domain searching
#	defer_no_connect,		# try again if the nameserver is down
#	-local_mx_okay,			# fail an MX to the local host

inet_zone_smtp:
	driver=tcpsmtp,
	inet,				# use route-addr addresses for routing
	-max_addrs, -max_chars;		# no limit on number of addresses

	short_timeout=5m,		# timeout for short operations
	long_timeout=2h,		# timeout for longer SMTP operations
	service=smtp,			# connect to this service port
# For internet use: uncomment the below 4 lines
#	use_bind,			# resolve MX and multiple A records
#	defnames,			# use standard domain searching
#	defer_no_connect,		# try again if the nameserver is down
#	-local_mx_okay,			# fail an MX to the local host

local_smtp:
	driver=tcpsmtp,
	local_xform,			# transfer using local formats
	-max_addrs, -max_chars;		# no limit on number of addresses

	short_timeout=5m,		# timeout for short operations
	long_timeout=2h,		# timeout for longer SMTP operations
	service=smtp,			# connect to this service port
# For internet use: uncomment the below 4 lines
#	use_bind,			# resolve MX and multiple A records
#	defnames,			# use standard domain searching
#	defer_no_connect,		# try again if the nameserver is down
#	-local_mx_okay,			# fail an MX to the local host

# local_* - local forms for all of the remote transport entries
#
# Local format transports are useful when transferring mail messsages
# within coordinated networks that all run Smail3.1.  When the local
# attribute is enabled for a transport that delivers messages to a
# remote machine, any local addresses in the header or envelope of the
# message are left as local-format addresses, and the sender is left
# as a local login name.
#
# This convention for message tranfers allows local networks to be
# hidden by the common mail users and by users external to the
# network.  Messages transferred to remote nodes in the network will
# appear as though they originated on the receiving node.  Messages
# that eventually leave the network (and are thus delivered by a
# transport that does not have the local attribute set) will be
# transformed into remote-format messages, with qualified domain names
# for all local-format addresses.
#
# This can be very convenient for networks that have a central mail
# processor that handles all mailing lists and forwarding for the
# network, and where user names are kept coordinated throughout the
# network.
#
# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
local_uux:
	driver=pipe,
	local_xform,			# transfer using local message format
	uucp,				# use uucp-conformant addresses
	from,				# supply a From_ envelope line
	max_addrs=5,			# at most 5 addresses per invocation
	max_chars=200;			# at most 200 chars of addresses

	# the -r flag prevents immediate delivery, parentheses around the
	# $user variable prevent special interpretation by uux.
	cmd="/usr/bin/uux - -r $host!rmail $(($user)$)",
	#cmd="/usr/bin/uux - -r -a$sender -g$grade $host!rmail $(($user)$)",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error

# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
local_demand:
	driver=pipe,
	local_xform,			# transfer using local formats
	uucp,				# use uucp-conformant addresses
	from,				# supply a From_ envelope line
	max_addrs=5,			# at most 5 addresses per invocation
	max_chars=200;			# at most 200 chars of addresses

	# with no -r flag, try to contact remote site immediately
	cmd="/usr/bin/uux - $host!rmail $(($user)$)",
	#cmd="/usr/bin/uux - -a$sender -g$grade $host!rmail $(($user)$)",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error

# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
local_uusmtp:
	driver=pipe,
	local_xform,			# transfer using local formats
	bsmtp,				# send batched SMTP commands
	-max_addrs, -max_chars;		# no limit on number of addresses

	# supply -r to prevent immedate delivery, the recipient addresses
	# are stored in the data sent to the standard input of rsmtp.
	cmd="/usr/bin/uux - -r $host!rsmtp",
	#cmd="/usr/bin/uux - -r -a$sender -g$grade $host!rsmtp",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error

# HDB UUCP users should comment out the first cmd= line below, and
# uncomment the second.
local_demand_uusmtp:
	driver=pipe,
	local_xform,			# transfer using local formats
	bsmtp,				# send batched SMTP commands
	-max_addrs, -max_chars;		# no limit on number of addresses

	# with no -r flag, try to contact remote site immediately
	cmd="/usr/bin/uux - $host!rsmtp",
	#cmd="/usr/bin/uux - -a$sender -g$grade $host!rsmtp",
	pipe_as_sender,			# have uucp logs contain caller
	log_output,			# save error output for bounce messages
#	defer_child_errors,		# retry if uux returns an error