Setting up rblsmtpd
NB: you can skip this page if you decided to use qmail-dnsbl instead Info: https://www.fehcom.de/ipnet/ucspi-tcp6/man/rblsmtpd.1.html Greetdelay patch by Erwin Hoffmann: http://www.fehcom.de/qmail/qmail.html##greetdelay A Realtime Block List (RBL) is a list of addresses that an RBL list supplier believes are a source of Spam.rblsmtpd blocks mail from RBL-listed...
qmail-taps-extended
The qmail-taps-extended patch by Inter7 (extension by Michai Secasiu) provides the ability to save each email which flows through the system. You could decide to log only the messages which have the From or To address set to a local account. You just have...
Greetdelay for qmail
Download here Author of the patch: John Simpson (?) I replaced the original greetdelay by Erwin Hoffmann with the patch by John Simpson. Now communications trying to send commands before the greeting will be closed provided that you declare DROP_PRE_GREET; premature disconnections will...
Configuring moreipme
The qmail-moreipme patch by Scott Gifford prevents a problem caused by an MX or other mail routing directive instructing qmail to connect to itself without realizing it's connecting to itself, saving CPU time and in the most critical cases it takes...
How to avoid being "cut off" by spamhaus.org
As you probably know spamhaus limits your smtp and DNS traffic (http://www.spamhaus.org/organization/dnsblusage/ for more info) and in case of big servers this can be a serious problem. Luckily, Costel Balta sent me a solution to the problem that I'm going to paste...
ezmlm-browse
Info: http://untroubled.org/ezmlm-browse/ Version: 0.20 (2010-12-03) ezmlm-browse is a web interface for browsing ezmlm-idx archives. Download the package in a folder not visible by apache cd /var/www wget http://untroubled.org/ezmlm-browse/ezmlm-browse-0.20.tar.gz tar xzf ezmlm-browse-0.20.tar.gz ln -s ezmlm-browse-0.20 ezmlm-browse cd ezmlm-browse chown -R root:root . Check the files ezmlm-browse/conf-* files and adjust them to your...
Testing ESMTP-SIZE patch for qmail
Author of the patch: Will Harris' (?) http://will.harris.ch/qmail-smtpd.c.diff (local copy) The patch allows the qmail-smtpd to reject the message if it's too big according to its accepted databytes before it has been received. Try to send a test message that is bigger than your...
qmail-inject sieve vacation/reject messages trouble
Author of the patch: Stéphane Cottin qmail-inject-null-sender patch Last week me and a couple of friends of this blog dealed with a trouble which engaged us for many hours, until Stéphane Cottin sent me this patch after 3 minutes from my request! The problem Create...
