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Domain: shupp.org

Stories and comments across the archive that link to shupp.org.

Comments · 7

  1. The patches make it still worthwhile by rainer_d · · Score: 2, Informative · on Qmail At 10 Years — Reflections On Security

    Bill Shupp's patch plus Matt Simerson's Mail-Toaster Perl-library still make a difference.
    With postfix or sendmail, you've got to write all the provisioning-tools yourself, but qmail+vpopmail+qmailadmin delivers something out-of-the-box.

    http://www.shupp.org/
    http://mail-toaster.org/

  2. Some ideas for qmail by Matt+Perry · · Score: 1 · on Building a Scalable Mail System?

    This page might have some ideas.. Also see this page for a howto on setting up the mail server.

  3. Some ideas for qmail by Matt+Perry · · Score: 1 · on Building a Scalable Mail System?

    This page might have some ideas.. Also see this page for a howto on setting up the mail server.

  4. Re:Qmail!! by MyEyesTheyBurn · · Score: 1, Interesting · on Infrastructure for One Million Email Accounts?
    I have to agree with QMail, I've seen it scale nicely - but not on one machine. You would really need a large cluster of machines - Perhaps the following:

    - 4-5 core machines all running heartbeat, and DRDBD or NFS
    - Then several Machines for POP, IMAP, and Webmail (NFS the maildirs)
    - Then several SMTP servers.

    Something similar, but greatly scaled, like this: http://shupp.org/maps/ispcluster.html

  5. Re:qmail by spun · · Score: 5, Informative · on I am the Most Spammed Person in the World
    Short Answer: No, but other people do.

    Long Answer: The concern is the misdirected bounce. By default and in accordance with the RFC, qmail bounces messages it accepts then later decides it can't deliver back to the sender. Spammers use false return addresses, so you end up bouncing spam back to innocent third parties. When used with naive spam-filtering techniques, this can be a problem i.e. qmail accepts the message, but a spam filter rejects it, and it is bounced. Here's what SpamCop.net has to say about it:

    Qmail: Qmail is one popular mail exchanger which suffers from this problem by default. If you use qmail, please apply a patch: spamcontrol or qmail-ldap.

    There is also an experimental patch for qmail which allows you to send bounces, but isolate them on a different IP address (so that spamcop can block them without blocking other mail): Richard Lyons BOUNCEQUEUE patch

    PZInternet.com reports chkuser is a very good qmail patch to avoid misdirected bounces - very easy to install too! http://www.interazioni.it/opensource/chkuser/

    For users of qmail-toasters, check out the simscan patch

    Everything anti-spam is done by people other than djb. I love qmail, but it really isn't the easiest server to set up for spam control. One needs about a dozen patches to get it working right.
  6. Re:A complete solution - the FreeBSD toaster by drshannon · · Score: 1 · on Mailing List Managers?

    For a Linux based toaster, check out Bill Shupp's Toaster which is based on Matt Simersons. The virtual domain support is indeed wicked cool, using Vpopmail.

  7. qmail by jabbo · · Score: 4, Informative · on Improving Unix Mail Storage?
    This is just too easy.

    Life With Qmail

    Building a Linux Qmail Toaster

    Same thing, but with FreeBSD (more scalable, in my experience)

    have fun