e00dfb245f
An easy-to-use, high-speed mailing list manager for qmail. Submitted by: Camiel Dobbelaar <cd@sentia.nl>
51 lines
2.4 KiB
Plaintext
51 lines
2.4 KiB
Plaintext
ezmlm is an easy-to-use, high-speed mailing list manager for qmail.
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ezmlm lets users set up their own mailing lists within qmail's address
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hierarchy. A user, Joe, types
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ezmlm-make ~/SOS ~/.qmail-sos joe-sos isp.net
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and instantly has a functioning mailing list, joe-sos@isp.net, with all
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relevant information stored in a new ~/SOS directory.
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ezmlm sets up joe-sos-subscribe and joe-sos-unsubscribe for automatic
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processing of subscription and unsubscription requests. Any message to
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joe-sos-subscribe will work; Joe doesn't have to explain any tricky
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command formats. ezmlm will send back instructions if a subscriber sends
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a message to joe-sos-request or joe-sos-help.
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ezmlm automatically archives new messages. Messages are labelled with
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sequence numbers; a subscriber can fetch message 123 by sending mail to
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joe-sos-get.123. The archive format supports fast message retrieval even
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when there are thousands of messages.
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ezmlm takes advantage of qmail's VERPs to reliably determine the
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recipient address and message number for every incoming bounce message.
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It waits ten days and then sends the subscriber a list of message
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numbers that bounced. If that warning bounces, ezmlm sends a probe; if
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the probe bounces, ezmlm automatically removes the subscriber from the
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mailing list.
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ezmlm is easy for users to control. Joe can edit ~/SOS/text/* to change
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any of the administrative messages sent to subscribers. He can remove
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~/SOS/public and ~/SOS/archived to disable automatic subscription and
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archiving. He can put his own address into ~/SOS/editor to set up a
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moderated mailing list. He can edit ~/SOS/{headeradd,headerremove} to
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control outgoing headers. ezmlm has several utilities to manually
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inspect and manage mailing lists.
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ezmlm uses Delivered-To to stop forwarding loops, Mailing-List to
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protect other mailing lists against false subscription requests, and
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real cryptographic cookies to protect normal users against false
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subscription requests. ezmlm can also be used for a sublist,
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redistributing messages from another list.
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ezmlm is reliable, even in the face of system crashes. It writes each
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new subscription and each new message safely to disk before it reports
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success to qmail.
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ezmlm doesn't mind huge mailing lists. Lists don't even have to fit into
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memory. ezmlm hashes the subscription list into a set of independent
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files so that it can handle subscription requests quickly. ezmlm uses
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qmail for blazingly fast parallel SMTP deliveries.
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