sendmail 8.6.9. may your cm5 explode
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Sendmail Version 8
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Frequently Asked Questions
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Version 8.2 of 2/28/94
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Version 8.3 of 4/14/94
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This FAQ is specific to Version 8 of sendmail.
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@ -207,6 +207,12 @@ This FAQ is specific to Version 8 of sendmail.
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description to be a new program that does this local delivery.
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I understand that "procmail" works well, although I haven't
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used it myself.
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You might be interested in reading the paper ``HLFSD: Delivering
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Email to your $HOME'' available in the Proceedings of the
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USENIX System Administration (LISA VII) Conference (November
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1993). This is also available via public FTP from
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ftp.cs.columbia.edu:/pub/hlfsd/{README.hlfsd,hlfsd.ps}.
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----------------------------------------------------------------------
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* Under V8, the "From " header gets mysteriously munged when I send
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to an alias.
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@ -1,5 +1,5 @@
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/*-
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* @(#)READ_ME 8.9 (Berkeley) 1/26/94
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* @(#)READ_ME 8.10 (Berkeley) 4/13/94
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*/
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SENDMAIL RELEASE 8
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@ -137,6 +137,35 @@ will cause problems with sendmail because sendmail already understands
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about NEWDB and NDBM coexisting.
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+--------------------+
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| Host Name Services |
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+--------------------+
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If you compile with NAMED_BIND (the default) sendmail will use
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DNS (the Domain Name System) for most host name lookups. If
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you do not have DNS running at your site you may have to turn
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this off to cause sendmail to use NIS and/or the /etc/hosts file.
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In particular, on SunOS you have to choose to use DNS (which
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you should do if you are attached to the Internet, otherwise
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you lose MX records, which are required) or NIS -- there is no
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way to try both.
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If you are using NIS and /etc/hosts, it is critical that you
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list the long (fully qualified) name first in the /etc/hosts file
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used to build the NIS database. For example, the line should read
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128.32.149.68 mastodon.CS.Berkeley.EDU mastodon
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**** NOT ****
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128.32.149.68 mastodon mastodon.CS.Berkeley.EDU
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If you use the wrong order, sendmail will conclude that your
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canonical name is the short version and use that in messages.
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The name "mastodon" doesn't mean much outside of Berkeley,
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and so this creates incorrect and unreplyable messages.
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+-------------+
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| USE WITH MH |
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+-------------+
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@ -1,10 +1,136 @@
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SENDMAIL RELEASE NOTES
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@(#)RELEASE_NOTES 8.6.7.1 (Berkeley) 3/14/94
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@(#)RELEASE_NOTES 8.6.9.2 (Berkeley) 4/19/94
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This listing shows the version of the sendmail binary, the version
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of the sendmail configuration files, the date of release, and a
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summary of the changes in that release.
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8.6.9/8.6.9 94/04/19
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Do all mail delivery completely disconnected from any terminal.
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This provides consistency with daemon delivery and
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may have some security implications.
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Make sure that malloc doesn't get called with zero size,
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since that fails on some systems. Reported by Ed
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Hill of the University of Iowa.
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Fix multi-line values for $e (SMTP greeting message). Reported
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by Mike O'Connor of Ford Motor Company.
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Avoid syserr if no NIS domain name is defined, but the map it
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is trying to open is optional. From Win Bent of USC.
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Changes for picky compilers from Ed Gould of Digital Equipment.
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Hesiod support for UDB from Todd Miller of the University of
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Colorado. Use "hesiod" as the service name in the U
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option.
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Fix a problem that failed to set the "authentic" host name (that
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is, the one derived from the socket info) if you called
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sendmail -bs from inetd. Based on code contributed by
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Todd Miller (this problem was also reported by Guy Helmer
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of Dakota State University). This also fixes a related
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problem reported by Liudvikas Bukys of Rochester University.
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Parameterize "nroff -h" in all the Makefiles so people with
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variant versions can use them easily. Suggested by
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Peter Collinson of Hillside Systems.
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SMTP "MAIL" commands with multiple ESMTP parameters required two
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spaces between parameters instead of one. Reported by
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Valdis Kletnieks of Virginia Tech.
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Reduce the number of system calls during message collection by
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using global timeouts around the collect() loop. This
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code was contributed by Eric Wassenaar.
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If the initial hostname name gathering results in a name
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without a dot (usually caused by NIS misconfiguration)
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and BIND is compiled in, directly access DNS to get
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the canonical name. This should make life easier for
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Solaris systems. If it still can't be resolved, and
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if the name server is listed as "required", try again
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in 30 seconds. If that also fails, exit immediately to
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avoid bogus "config error: mail loops back to myself"
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messages.
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Improve the "MAIL DELETED BECAUSE OF LACK OF DISK SPACE" error
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message to explain how much space was available and
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sound a bit less threatening. Suggested by Stan Janet
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of the National Institute of Standards and Technology.
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If mail is delivered to an alias that has an owner, deliver any
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requested return-receipt immediately, and strip the
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Return-Receipt-To: header from the subsequent message.
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This prevents a certain class of denial of service
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attack, arguably gives more reasonable semantics, and
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moves things more towards what will probably become a
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network standard. Suggested by Christopher Davis of
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Kapor Enterprises.
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Add a "noreceipts" privacy flag to turn off all return receipts
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without recompiling.
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Avoid printing ESMTP parameters as part of the error message
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if there are errors during parsing. This change is
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purely cosmetic.
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Avoid sending out error messages during the collect phase of
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SMTP; there is an MVS mailer from UCLA that gets
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confused by this. Of course, I think it's their bug....
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Check for the $j macro getting undefined, losing a dot, or getting
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lost from $=w in the daemon before accepting a connection;
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if it is, it dumps state, prints a LOG_ALERT message,
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and drops core for debugging. This is an attempt to
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track down a bug that I thought was long since gone.
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If you see this, please forward the log fragment to
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sendmail@CS.Berkeley.EDU.
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Change OLD_NEWDB from a #ifdef to a #if so it can be turned off
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with -DOLD_NEWDB=0 on the command line. From Christophe
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Wolfhugel.
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Instead of trying to truncate the listen queue for the server
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SMTP port when the load average is too high, just close
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the port completely and reopen it later as needed.
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This ensures that the other end gets a quick "connection
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refused" response, and that the connection can be
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recovered later. In particular, some socket emulations
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seem to get confused if you tweak the listen queue
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size around and can never start listening to connections
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again. The down side is that someone could start up
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another daemon process in the interim, so you could
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have multiple daemons all not listening to connections;
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this could in turn cause the sendmail.pid file to be
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incorrect. A better approach might be to accept the
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connection and give a 421 code, but that could break
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other mailers in mysterious ways and have paging behaviour
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implications.
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Fix a glitch in TCP-level debugging that caused flag 16.101 to
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set debugging on the wrong socket. From Eric Wassenaar.
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When creating a df* temporary file, be sure you truncate any
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existing data in the file -- otherwise system crashes
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and the like could result in extra data being sent.
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DOC: Replace the CHANGES-R5-R8 readme file with a paper in the
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doc directory. This includes some additional
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information.
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CONFIG: change UUCP rules to never add $U! or $k! on the front
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of recipient envelope addresses. This should have been
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handled by the $&h trick, but broke if people were
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mixing domainized and UUCP addresses. They should
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probably have converted all the way over to uucp-uudom
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instead of uucp-{new,old}, but the failure mode was to
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loop the mail, which was bad news.
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Portability fixes:
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Newer BSDI systems (several people).
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Older BSDI systems from Christophe Wolfhugel.
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Intergraph CLIX, from Paul Southworth of CICNet.
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UnixWare, from Evan Champion.
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NetBSD from Adam Glass.
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Solaris from Quentin Campbell of the University of
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Newcastle upon Tyne.
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IRIX from Dean Cookson and Bill Driscoll of Mitre
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Corporation.
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NCR 3000 from Kevin Darcy of Chrysler Corporation.
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SunOS (it has setsid() and setvbuf() calls) from
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Jonathan Kamens of OpenVision Technologies.
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HP-UX from Tor Lillqvist.
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New Files:
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src/Makefile.CLIX
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src/Makefile.NCR3000
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doc/changes/Makefile
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doc/changes/changes.me
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doc/changes/changes.ps
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8.6.8/8.6.6 94/03/21
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SECURITY: it was possible to read any file as root using the
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E (error message) option. Reported by Richard Jones;
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fixed by Michael Corrigan and Christophe Wolfhugel.
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8.6.7/8.6.6 94/03/14
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SECURITY: it was possible to get root access by using wierd
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values to the -d flag. Thanks to Alain Durand of
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@ -4,7 +4,7 @@
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Eric Allman <eric@CS.Berkeley.EDU>
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@(#)README 8.27 (Berkeley) 3/12/94
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@(#)README 8.28 (Berkeley) 4/14/94
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This document describes the sendmail configuration files being used
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@ -140,7 +140,11 @@ may be empty).
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ALIAS_FILE [/etc/aliases] The location of the text version
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of the alias file(s). It can be a comma-separated
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list of names.
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list of names (but be sure you quote values with
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comments in them -- for example, use
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define(`ALIAS_FILE', `a,b')
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to get "a" and "b" both listed as alias files;
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otherwise the define() primitive only sees "a").
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HELP_FILE [/usr/lib/sendmail.hf] The name of the file
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containing information printed in response to
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the SMTP HELP command.
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@ -813,7 +817,7 @@ Sam Leffler's FlexFAX software is still in beta test -- but he expects a
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public version out "later this week" [as of 3/1/93]. The following
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blurb is direct from Sam:
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$Header: /cvsroot/src/usr.sbin/sendmail/cf/Attic/README,v 1.8 1994/03/16 02:11:48 glass Exp $
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$Header: /cvsroot/src/usr.sbin/sendmail/cf/Attic/README,v 1.9 1994/04/20 06:25:59 glass Exp $
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How To Obtain This Software (in case all you get is this file)
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--------------------------------------------------------------
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