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Topic: Postfix

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	Postfix - Wikipedia, the free encyclopedia
		"Postfix" in linguistics and computer science means "suffix".
		Postfix notation in mathematics is a common name for reverse Polish notation.
		Postfix is the name of a mail transfer agent program.
	en.wikipedia.org /wiki/Postfix (95 words)

	Postfix Howtos and FAQs
		Postfix SASL Authentication and TLS howto by Patrick Koetter.
		Postfix SASL + TLS + OpenBSD howto by Jeffrey Posluns.
		Postfix SMTP Authentication howto by Devin L. Ganger.
	www.postfix.org /docs.html (392 words)

	SecurityPortal - Kurt's Closet: Postfix - the Sendmail replacement (Site not responding. Last check: 2007-11-05)
		Postfix does not run exclusively as root, instead a master program (called "master") runs as root and spawns off processes to handle incoming, outgoing and local mail delivery as needed.
		Postfix is also much easier to setup for a chroot'ed environment than Sendmail is, simply make a few edits to the master.cf file (typically in /etc/postfix) and Postfix will run chroot'ed in its defined queue directory (usually /var/spool/postfix).
		Another major benefit of Postfix is the clarity of the configuration files, if you haven't yet looked at the guts of a sendmail.cf file I would recommend that you don't (O'Reilly has an 800 page book on Sendmail).
	www.postfix.co.uk /securityportal.199909/closet19990915.html (991 words)

	Postfix Notation Mini-Lecture
		Postfix notation is a way of writing algebraic expressions without the use of parentheses or rules of operator precedence.
		The postfix expression to be evaluated is scanned from left to right.
		When an operator is encountered, the indicated action is performed using the top elements of the stack, and the result replaces the operands on the stack.
	www.spsu.edu /cs/faculty/bbrown/web_lectures/postfix (1232 words)

	The Postfix Home Page (Site not responding. Last check: 2007-11-05)
		First of all, thank you for your interest in the Postfix project.
		Postfix attempts to be fast, easy to administer, and secure, while at the same time being sendmail compatible enough to not upset existing users.
		Thus, the outside has a sendmail-ish flavor, but the inside is completely different.
	www.postfix.org (70 words)

	ONLamp.com: Postfix: A Secure and Easy-to-Use MTA
		Postfix was developed as a replacement for Sendmail and is known to compile on almost every flavor of Unix including Mac O/S X. Wietse Venema, program founder and security specialist, several years developing the application while working as a researcher at IBM's T.J. Research lab.
		Postfix became especially popular during the Linux revolution by enthusiasts who were looking for open source code that would compile on a free operating system.
		Postfix attempts to be fast, easy to administer, and secure, while at the same time being compatible enough with Sendmail so as not to upset existing users.
	www.onlamp.com /pub/a/bsd/2003/08/21/postfix.html (1104 words)

	[No title]
		The Postfix mail system's wide variety of configuration options help administrators combat abuse by allowing precise restriction of the server's resources and how they are made available for the use of others.
		Versions 1.5.5 or greater are reported to work with Postfix; the most recent non-beta release of the library as of this writing is 1.5.24, the latest beta is 1.5.27.
		Configuring Postfix ------------------- The following are the new parameters in main.cf that affect SMTP authentication in the server: broken_sasl_auth_clients Set this equal to yes to enable support for older clients that expect AUTH= instead of AUTH.
	www.thecabal.org /~devin/postfix/smtp-auth.txt (2801 words)

	Fighting malware and spam with Postfix \| Advosys Consulting
		Postfix (http://www.postfix.org/) is the popular Sendmail replacement that is fast, secure, and easy to administer.
		Install and configure Postfix first, and verify it is working the way you want (accepting mail for your domain(s), relaying to and from internal servers, and so on).
		Postfix should now be filtering messages it receives for your local domains through both Anomy Sanitizer and Spamassassin.
	advosys.ca /papers/postfix-filtering.html (2687 words)

	Postfix Source Code (Site not responding. Last check: 2007-11-05)
		Postfix was released under the IBM Public License.
		Official releases are called "Postfix a.b.c", where a is the major release number, b is the minor release number, and c is the patchlevel.
		Experimental releases are called "Postfix a.b-yyyymmdd", where a.b is the next official Postfix release and yyyymmdd is the release date.
	postfix.kayjay.net /postfix-release (146 words)

	ERCB: Postfix
		Postfix rates 10 green flags (low for a book of this size), one yellow flag, and four red flags.
		For example, the Postfix mailq can also be invoked by the sendmail equivalent, "sendmail -bp." There are too many programs that assume sendmail is present to ignore.
		A lot of the Postfix docs assume you already know the jargon (for example, you are already administering an e-mail system and are migrating to Postfix).
	www.ercb.com /feature/feature.0061.html (2228 words)

	Postfix FAQ
		According to my configuration Postfix should be replying with a permanent error code (554), but it keeps sending a temporary one (454).
		Postfix seems to be ignoring the MX record and trying to deliver directly to the A record system.
		Postfix reports this error when a DNS reply points to your mail server, but Postfix hasn't been configured to deal with messages addressed to the domain.
	www.seaglass.com /postfix/faq.html (6556 words)

	Matthias Andree's Postfix site
		Postfix is an open source, fast, secure and modular mail transfer agent for Unix.
		postfix-20031026-foreground.diff: a patch to add a "start-foreground" option to postfix-script (also applies against 20031204), useful when Postfix is supposed to be started from init, runit or daemontools.
		Handy when maildrop is used as a postfix transport, because local_recipient_maps currently only apply to mail coming in via smtpd, not to mail coming in via sendmail.
	mandree.home.pages.de /postfix (325 words)

	Chapter 10. Postfix (Site not responding. Last check: 2007-11-05)
		Postfix is an efficient and feature-rich mail server that was designed by Wietse Venema at the IBM T.J. Watson Research Center (Figure 10.1, “Postfix”).
		Postfix offers a relatively easy to use, and flexible, address rewriting system, allowing it to act as a mail gateway for a large network, or as a gateway between legacy mail systems and the Internet at large (Figure 10.4, “Address Rewriting and Masquerading”).
		Canonical mapping in Postfix is used for modifying mail in the incoming queue, and it alters both the message headers and the message envelope information for local or remote mail.
	www.swelltech.com /support/webminguide/ch10.html (9824 words)

	Daemon News '200309' : '"Postfix and SpamAssassin "'
		Best with Postfix, fine with dual-sendmail setup and Exim v4, works with sendmail/milter, or with any MTA as a SMTP relay.
		You may want to have a look at one of my previous articles "Postfix with SASL Authentication over TLS" or simply go to www.postfix.org for further information.
		Postfix should be listening on two ports now - 25 and 10025.
	ezine.daemonnews.org /200309/postfix-spamassassin.html (2774 words)

	ONLamp.com: Troubleshooting with Postfix Logs
		Postfix provides a number of ways to get information that can be helpful when you are trying to diagnose a problem.
		This article discusses Postfix logging in general, how to find all of the relevant information in the logs, and finally, how to increase the amount of logging when more information is needed.
		When other Postfix components handle the message, they reference the same queue ID and record it with their logging entries.
	www.onlamp.com /pub/a/onlamp/2004/01/22/postfix.html (1820 words)

	Postfix+Courier-IMAP+MySQL multiple domain HOWTO (Site not responding. Last check: 2007-11-05)
		Postfix really doesn't care that you have multiple people named jimbob because it looks at the entire address.
		In that case, remove the address field, and replace address in all postfix config files with id. The reason there are two different fields is so you can use user.domain.tld, or user.somenumber or something along those lines rather than user@domain.tld as a username.
		One other thing on the database: If you run Postfix in a chroot jail, and you are using localhost as your mysql server, you might want to add a hardlink to the mysql socket somewhere inside the jail/sandbox you are running in.
	kirb.insanegenius.net /postfix.html (2370 words)

	Amazon.com: Books: Postfix (Site not responding. Last check: 2007-11-05)
		I believe that postfix still has some weaknesses relative to sendmail (and sendmail has recently strengthened its position with regards to certain issues), but it is still an excellent program.
		Moreover, postfix is written by reknowned security/secure programming expert Wietse Venema, and he has gone to great lengths to prove that you can write programs that are both secure by default and designed to perform well, including under extreme load.
		The Postfix organization and operation is VERY logic after the fact, but it will be a lot easier if someone show you (and save you from making the same mistakes).
	www.amazon.com /exec/obidos/tg/detail/-/0672321149?v=glance (1628 words)

	Postfix "per user UCE control" patch (Site not responding. Last check: 2007-11-05)
		This patch extends Postfix with the trinary conditional macro expansion.
		Please note that in the unpatched Postfix literal $name in text had to be escaped as $$name.
		If the key is evaluated to REJECT, throw away the result and return with evaluating the value from the map file belonging to the key.
	www.kfki.hu /~kadlec/sw/postfix_patch.html (1400 words)

	Configuring Mail Gateway Using Postfix (Site not responding. Last check: 2007-11-05)
		Postfix default to relay for clients on the same subnet.
		Postfix is the final destination: any destination that matches $mydestination, $inet_interfaces or $virtual_maps.
		The single most important when running Postfix is to frequently monitor the /var/log/maillog for any reject, warning, panic or fatal.
	www.muine.org /~hoang/postfix.html (1825 words)

	Using Postfix for Secure SMTP Gateways \| Linux Journal
		Postfix is a full-featured MTA, and therefore its core functions are the same as any other's.
		Since postfix is comprised of many different programs that function without a direct relationship to each other, if something goes wrong, the chance that such a problem can be exploited by an attacker is minimized.
		In addition to ``provisioning'' postfix's chroot jail, you need to edit /etc/postfix/master.cf to toggle the postfix dæmons you wish to run chrooted (i.e., put a ``y'' in the ``chroot'' column of each dæmon to be chrooted).
	www2.linuxjournal.com /article/4241 (3627 words)

	Ralf Hildebrandt: /~hildeb/postfix/Welcome.shtml
		This is a chapter from the Postfix book from No Starch Press which will be published in March 2005.
		Postfix as a Mailhub with extensive anti-spam configuration
		Donations are welcome if you consider my free Postfix support helpful.
	www.stahl.bau.tu-bs.de /~hildeb/postfix (536 words)

	TLS/IPv6 patch for Postfix
		Even though the Postfix mail system is great, there is a number of features not implemented by the official source code.
		Now that IPv6 and TLS support have been included into an official Postfix 2.2 snapshot, this patch is close to the end of it's life, with the code part of the Postfix releases.
		In theory, no special post-installation configuration of Postfix is required, although you may want to extend the value of the 'mynetworks' parameter to include the IPv6 networks the system is in.
	www.ipnet6.org /postfix/ipv6.html (1513 words)

	DSpam for Postfix (Site not responding. Last check: 2007-11-05)
		I'll only be describing the steps to modify a working postfix instance to use DSpam.
		Configuring postfix for local delivery using DSpam: We setup the mailbox_command to use dspam.
		The RHS of this table is unused, however to make postfix not throw an error, something needs to be there.
	www.mooluv.com /dspam.html (990 words)

	freshmeat.net: Project details for Postfix (Site not responding. Last check: 2007-11-05)
		Postfix is an attempt to provide an alternative to the widely-used Sendmail program.
		The license bugs me but there is not a lot that can be done about that now, at least not by the Postfix maintainers (but IBM could retroactively re-release their code under BSD or GPL and Postfix could opt to relicense their copious additions).
		I tried Postfix after hearing good reports and first impressions are that it's a superb mail server, I managed to make a complete mirror image of my existing sendmail setup in a couple of hours from first downloading it.
	freshmeat.net /projects/postfix (568 words)

	The Postfix Home Page (Site not responding. Last check: 2007-11-05)
		It is Wietse Venema's mailer that started life as an alternative to the widely-used Sendmail program.
		It was released by the end of 1998 as the IBM Secure Mailer.
		From then on it has lived on as Postfix.
	www.informatik.uni-bonn.de /pub/software/postfix/start.html (96 words)

	Postfix Logging Documentation (Site not responding. Last check: 2007-11-05)
		Postfix is not a monolithic mailer like sendmail, but a set of more or less independant modules (for example: smtpd, local pickup, cleanup).
		Every module has it's own ident under which is logs, but the format is more or less the same.
		The process id of the postfix invocation that produced this log line.
	logreport.org /doc/gen/email/postfix.php (190 words)

	Wietse's Postfix Project (Site not responding. Last check: 2007-11-05)
		Late news: the Postfix release is scheduled for December 11th from
		Postfix is the freeware project that I started during my sabattical year in the USA while visiting IBM T.J. Watson Research.
		Postfix attempts to be fast, easy to administer, and hopefully secure, while at the same time being sendmail compatible enough to not upset your users.
	www.porcupine.org /postfix (309 words)

	JIMSUN - Postfix Contribs
		Note: Postfix versions later than 20021026, including Postfix version 2.0 and beyond, require pflogsumm 1.0.8 or later for proper smtpd log message parsing.
		Really only useful for those running a workstation at home and who normally send and receive their email via a UUCP feed, but would like to take advantage of "direct, fast delivery" when they have their PPP connection up.
		Postfix's configuration is so darn simple, it really lends itself well to this kind of thing :-).
	jimsun.linxnet.com /postfix_contrib.html (1410 words)

	Daemon News '200306' : '"Postfix with SASL Authentication over TLS "'
		I hope I don't have to explain why mechanisms such as: identification, authentication and authorization have to be implemented.
		Default postfix installation is not an open relay.
		It is enough for him to telnet to your Postfix, issue helo instead of ehlo and forge mail from gregory to root.
	ezine.daemonnews.org /200306/postfix-sasl.html (1075 words)

	[No title]
		Postfix experimental release 20030706 contains experimental support for CIDR-based lookup tables, so the regexp-type lookups for address ranges may soon no longer be necessary.
		Lastly: For Postfix 2.x versions, reject_unauth_pipelining should always be placed in smtpd_data_restrictions, even if it's the only one you put there.
		Postfix 2.x supports the use of these for client host and domain names, as well, but the check is meaningful only if the client address has a hostname associated with it.
	jimsun.linxnet.com /misc/postfix-anti-UCE.txt (5903 words)

	Debian -- postfix-dev
		Postfix is Wietse Venema's mail transport agent that started life as an alternative to the widely-used Sendmail program.
		This provides the headers and library links to build additional map types for Postfix.
		If you're not developing postfix modules, then you do not need this.
	packages.debian.org /unstable/devel/postfix-dev.html (136 words)

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