Be sure to set the $gMailer variable correctly in /etc/debbugs/config.
The options are (all lower case) exim, qmail and sendmail.
-Exim
+Exim 4
+------
+The exim 4 setup supports virtual domains. This doesn't hurt on a
+dedicated system. File names are for systems that use exim4's split
+config scheme. If you use something else, you'll need to put the
+configuration options in yourself at the appropriate place (most
+likely /etc/exim4/exim4.conf or /etc/exim4/exim4.conf.template).
+
+Create a non-root user with a non-root group as its primary group.
+We'll use Debian-debbugs as the user and group:
+ # adduser --system --group --home /var/lib/debbugs \
+ --no-create-home --disabled-login --force-badname Debian-debbugs
+
+This user needs to be able to write to /var/lib/debbugs.
+
+/etc/exim4/conf.d/main/03_debbugs:
+DEBBUGS_DOMAIN = <domain name>
+DEBBUGS_USER = Debian-debbugs
+DEBBUGS_GROUP = Debian-debbugs
+
+/etc/exim4/conf.d/transport/30_debbugs:
+debbugs_pipe:
+ debug_print = "T: debbugs_pipe for $local_part@$domain"
+ driver = pipe
+ user = DEBBUGS_USER
+ group = DEBBUGS_GROUP
+ command = /usr/lib/debbugs/receive
+ return_output
+
+/etc/exim4/conf.d/router/250_debbugs:
+debbugs:
+ debug_print = "R: debbugs for $local_part@$domain"
+ driver = accept
+ transport = debbugs_pipe
+ local_parts = submit : bugs : maintonly : quiet : forwarded : \
+ done : close : request : submitter : control : ^\\d+
+ domains = DEBBUGS_DOMAIN
+
+bounce_debbugs:
+ debug_print = "R: bounce_debbugs for $local_part@$domain"
+ driver = redirect
+ allow_fail
+ data = :fail: Unknown user
+ domains = DEBBUGS_DOMAIN
+
+The bounce_debbugs router bounces all mail for the DEBBUGS_DOMAIN that
+hasn't been picked up by the debbugs router. If you want addresses
+from that domain that do not belong to debbugs to be handled normally,
+simply omit that router. However, since the pattern on deb debbugs
+router match a significant subset of the domain's local parts, it is
+strongly recommended to use a dedicated domain for debbugs.
+
+
+Exim 3
----
-I've seen two types of setting up Exim used.
+I've seen two types of Exim 3 set ups being used:
1) If the machine is dedicated and all e-mail goes to the debbugs script,
add this in the transport section:
local_parts = submit:bugs:maintonly:quiet:forwarded:done:close:request:submitter:control:^\\d+
2) If the domain is a virtual host on a machine that needs it, there are
- many ways of handling it. I think the neatest was:
+ many ways of handling it. I think the neatest was to use the above
+ transport and director, except to add the following line to the
+ director's options:
-debbugs:
- driver = aliasfile
domains = <domain name>
- file = /usr/lib/debbugs/receive
- user = <some user>
- group = <some group>
- current_directory = /var/lib/debbugs/spool
+
+ Alternatively, Chad Miller <cmiller@surfsouth.com> suggests:
+
+ The method I discovered involved adding at the top of the routers section:
+
+debbugs_router:
+ driver = domainlist
+ transport = debbugs_transport
+ route_list = "bugs.foo.bar;bugs.baz.quux"
+
+ where bugs.foo.bar and bugs.baz.quux are mail-domains for which I want to
+ receive bug requests only.
+ Next, add anywhere in the transports section:
+
+debbugs_transport:
+ driver = pipe
+ command = /usr/lib/debbugs/receive
+ user = <some non-root user>
+ group = <some non-root group>
+ current_directory = /etc/debbugs
home_directory = /var/lib/debbugs/spool
+ (current_directory may need to be /var/lib/debbugs/spool, depending on
+ your setup.)
+
+ Next, the mail domains MUST NOT be in the "local_domains" list!
+ Instead, we MUST put them in the "relay_domains" list.
+
+ Essentially, this tells exim that we agree ("relay_domains") to relay
+ mail for those zones ("debbugs_router") and "send" the mail using a pipe
+ ("debbugs_transport").
+
Qmail
-----
-From Tommi Virtanen (tv@debian.org):
+From Tommi Virtanen (tv@debian.org), amended by Daniel Ruoso
+(daniel@ruoso.com):
Here's my suggestion for safe & secure installation under qmail:
Give the user access to the bug databases
# chown -R debbugs:debbugs /var/lib/debbugs/*
Set the BTS owner address
- # echo 'me@my.example.com' >~debbugs/.qmail-owner
+ # echo '&me@my.example.com' >~debbugs/.qmail-owner
Make the BTS handle it's mail
# echo '|/usr/lib/debbugs/receive' >~debbugs/.qmail-default
Reload the virtualdomains config file
mail send to bugs.domain.net. Now we need to make a database from that
that postfix can use:
- # makemap hash transport
+ # postmap hash:transport
Now we need to teach postfix what the debbugs transport agent is. Edit
/etc/postfix/master.cf and add:
Finally add bugs.domain.net to mydestination in main.cf:
- mydestination = $myhostname localhost.$mydomain bugs.domain.org
+ mydestination = $myhostname localhost.$mydomain bugs.domain.net
Now that all this is done, restart postfix and it should be working..
Wichert.
+
+Procmail and SpamAssassin
+-------------------------
+
+Publicly-accessible debbugs installations have been known to receive a lot
+of spam. To combat this, some sites may find it useful to deliver mail to
+debbugs via procmail and filter everything through a spam detector like
+SpamAssassin. Here's a quick sketch of how to set this up (with Exim, but
+other MTAs should be similar).
+
+Arrange for mail to be delivered to procmail somehow. At the time of
+writing, bugs.debian.org uses a .forward file like this:
+
+ |procmail -p -m /org/bugs.debian.org/mail/.procmailrc
+
+The first thing to do in .procmailrc is to set up various variables used
+either implicitly or explicitly later on. Obviously, substitute
+/org/bugs.debian.org and so on with details of your own installation, and
+make sure any directories mentioned in mailbox names exist with appropriate
+permissions under $MAILDIR. Many of these variables are documented in
+procmailrc(5).
+
+ MAILDIR=/org/bugs.debian.org/mail
+ LOGFILE=$MAILDIR/.logfile
+ COMSAT=no
+ UMASK=003
+ SPAMC=/usr/bin/spamc
+ SENDMAIL=/usr/sbin/sendmail
+ YEARMONTH=`/bin/date +%Y-%m`
+ YEAR=`/bin/date +%Y`
+
+Next, a safety catch (optional): we copy all incoming mail into an mbox.
+This can easily grow quite large!
+
+ :0c:
+ backup/save-all.$YEARMONTH
+
+At this point you can insert customized rules for your site that drop or
+bounce particular types of mail. Then, filter through SpamAssassin and file
+matches off into a separate mailbox:
+
+ :0fw:spamc.lock
+ | $SPAMC
+
+ :0:
+ * ^X-Spam-Flag: yes
+ spam/assassinated.$YEARMONTH
+
+(The lock here is due to resource problems during mail floods. There may be
+better solutions.)
+
+Now arrange for owner@bugs mail to be copied to another mailbox and sent on
+to the right people. $LOCAL_PART is Exim-specific. Some people may prefer
+this to come before the SpamAssassin check.
+
+ :0
+ ? test "$LOCAL_PART" = owner -o "$LOCAL_PART" = postmaster
+ {
+ :0c:
+ owner/owner.$YEAR
+
+ :0
+ !foo@example.org, bar@example.org
+ }
+
+Everything else can now be saved to yet another mailbox and passed on to the
+receive script:
+
+ :0c:
+ receive/receive.$YEARMONTH
+
+ :0
+ |/usr/lib/debbugs/receive
+
+This should be sufficient, or even overkill, for a small installation.
+
+Some sites need to block particular abusers from using particular services,
+such as control@bugs, but don't want to ban them altogether. In this case an
+autoreply approach may be useful.
+
+ :0h
+ * LOCAL_PART ?? control
+ * !^FROM_DAEMON
+ * !^X-Loop: owner@bugs\.example\.org
+ * ^(From|Reply-To):.*(abuser1@example\.org|abuser2@example\.org)
+ | (formail -r -I"From: owner@bugs.example.org" -I"Precedence: junk" \
+ -A"X-Loop: owner@bugs.example.org"; \
+ echo "Processing commands for control@bugs.example.org:"; \
+ echo; \
+ echo "This service is unavailable.") | $SENDMAIL -oi -t
+
+Although not documented here, similar autoreply tricks should be possible
+without procmail. For instance, I would be surprised if Exim filters weren't
+up to the task.