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dnl *** EXAMPLE *** sendmail.mc file for a Mailman list server using |
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dnl mm-handler to deal with list operations (in place of aliases). |
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dnl This is what I actually use on my site. |
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dnl |
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dnl $Id: mailman.mc 4287 2001-10-27 02:30:51Z bwarsaw $ |
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dnl |
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dnl First you need to define your general characteristics. You |
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dnl should know what these settings should be at your site -- I |
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dnl only know what they should be at mine. |
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dnl |
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OSTYPE(solaris2)dnl |
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DOMAIN(generic)dnl |
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dnl |
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dnl You can keep the old alias files for back-compatibility, but it's |
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dnl probably better not to as this can become a point of confusion |
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dnl later. |
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dnl |
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define(`ALIAS_FILE', `/etc/mail/aliases,/etc/mail/lists') |
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dnl I use procmail for local delivery, because it's smart to have a |
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dnl local delivery mailer, even if you don't (ordinarily) do any local |
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dnl delivery. The Solaris local delivery mailer is part of its sendmail |
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dnl package. I pkgrmed the sendmail packages so that system upgrades |
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dnl don't kill my sendmail.com sendmail, so mail.local is unavailable, |
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dnl so I throw procmail in here even though it never gets used. |
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dnl |
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define(`PROCMAIL_MAILER_PATH', `/opt/bin/procmail') |
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FEATURE(`local_procmail') |
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MAILER(`local') |
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dnl Miscellaneous tuning. Not relevant to Mailman. |
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dnl |
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define(`confCONNECTION_RATE_THROTTLE', 5) |
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define(`confMAX_MESSAGE_SIZE', `5000000') |
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define(`confNO_RCPT_ACTION', `add-to-undisclosed') |
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define(`confME_TOO', `True') |
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define(`confDOUBLE_BOUNCE_ADDRESS', `mailer-daemon') |
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dnl Privacy options. Also not relevant. |
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dnl |
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define(`confPRIVACY_FLAGS', `authwarnings,needvrfyhelo,noexpn,noreceipts,restrictmailq') |
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dnl |
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dnl Mm-handler works by mailertabling all addresses on your list |
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dnl server hostname(s) through the mm-handler mailer. Mailertable |
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dnl maps mail domains to mailer types. I want a mailertable to map |
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dnl listtest.uchicago.edu to the mm-handler mailer, but we need to |
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dnl specifically request this functionality in the .mc file. |
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dnl |
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FEATURE(`mailertable', `hash -o /etc/mail/mailertable') |
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dnl |
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dnl This leads to an immediate and important side-effect: "local" |
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dnl addresses, and notably RFC-specified addresses such as postmaster, |
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dnl are assumed by sendmail to be lists! Since aliases are not processed |
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dnl for domaintabled domains, we must use a virtusertable to reroute |
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dnl such addresses. |
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dnl |
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FEATURE(`virtusertable', `hash -o /etc/mail/virtusertable') |
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dnl |
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dnl By default, sendmail applies virtusertable mapping, if at all, for |
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dnl all interfaces for which it accepts mail -- i.e., all domains in |
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dnl $=w. Mm-handler relies on your having a single domain (hostname) |
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dnl that serves only lists, with no users. To avoid potential namespace |
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dnl conflicts, you need not to have this list domain included in $=w. |
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dnl As a result, virtuser mapping does not apply for the Mailman |
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dnl list domain. However, you can pre-empt this rule by defining |
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dnl $={VirtHost}: if there are domains in this class, they will be
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dnl mapped before $=w is mapped. |
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dnl |
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dnl VIRTUSER_DOMAIN() defines this class. |
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dnl |
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VIRTUSER_DOMAIN(`nospam.uchicago.edu listtest.uchicago.edu listhost.uchicago.edu') |
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dnl |
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dnl On a related point: by default, Sendmail probes for open IP |
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dnl interfaces, and adds their hostnames to $=w. Although Sendmail does |
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dnl virtusertable mapping for members of $=w, it doesn't do mailertable |
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dnl mapping for them, because they're considered "local". This tells |
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dnl Sendmail not to probe interfaces for local hosts, and it's critical |
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dnl if your Mailman domain is actually an IP address (with an A record, |
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dnl not just CNAME or MX) on your server. |
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dnl |
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define(`confDONT_PROBE_INTERFACES', `True') |
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dnl |
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dnl Even though my actual hostname is foobar, tell the world that I'm |
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dnl listtest.uchicago.edu. |
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dnl |
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FEATURE(`limited_masquerade') |
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MASQUERADE_AS(`listtest.uchicago.edu') |
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dnl |
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dnl Access control is a useful feature for blocking abusers and relays |
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dnl and such. |
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dnl |
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FEATURE(`access_db') |
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dnl |
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dnl This allows you to block access for individual recipents through |
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dnl the same access database as is used for blocking sender hosts and |
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dnl addresses. |
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dnl |
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FEATURE(`blacklist_recipients') |
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dnl |
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dnl Other local mailers... |
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dnl |
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MAILER(`smtp') |
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MAILER(`procmail') |
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dnl |
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dnl Our Mailman-specific local mailer. |
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dnl |
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MAILER_DEFINITIONS |
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####################################
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### New Mailer specifications ###
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####################################
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## Special flags! See
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## http://www.sendmail.org/~ca/email/doc8.10/op-sh-5.html#sh-5.4
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## Note especially the absence of the "m" and "n" flags. THIS IS
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## IMPORTANT: mm-handler assumes this behavior to avoid having to know
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## too much about address parsing and other RFC-2822 mail details.
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Mmailman, P=/etc/mail/mm-handler, F=rDFMhlqSu, U=mailman:other, |
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S=EnvFromL, R=EnvToL/HdrToL, |
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A=mm-handler $h $u |