(*) when someone requests a subscription,
Mailman sends them a notice with a unique
subscription request number that they must reply to
in order to subscribe.
This prevents mischievous (or malicious) people
from creating subscriptions for others without
their consent.i sÎ Confirm (*) - email confirmation required
Require approval - require list administrator
approval for subscriptions
Confirm and approve - both confirm and approve
(*) when someone requests a subscription,
Mailman sends them a notice with a unique
subscription request number that they must reply to
in order to subscribe.
This prevents
mischievous (or malicious) people from creating
subscriptions for others without their consent.t admins1 This section allows you to configure subscription and
membership exposure policy. You can also control whether this
list is public or not. See also the
Archival Options section for
separate archive-related privacy settings.t Subscribingt
advertisedt Not YessP Advertise this list when people ask what lists are on this
machine?t subscribe_auto_approvali
sX List of addresses (or regexps) whose subscriptions do not
require approval.s When subscription requires approval, addresses in this list
are allowed to subscribe without administrator approval. Add
addresses one per line. You may begin a line with a ^ character
to designate a (case insensitive) regular expression match.t ss You may also use the @listname notation to designate the
members of another list in this installation.t unsubscribe_policysq Is the list moderator's approval required for unsubscription
requests? (No is recommended)sb When members want to leave a list, they will make an
unsubscription request, either via the web or via email.
Normally it is best for you to allow open unsubscriptions so that
users can easily remove themselves from mailing lists (they get
really upset if they can't get off lists!).
For some lists though, you may want to impose moderator approval before an unsubscription request is processed. Examples of such lists include a corporate mailing list that all employees are required to be members of.s Ban listt ban_listsU List of addresses which are banned from membership in this mailing list.s Addresses in this list are banned outright from subscribing to this mailing list, with no further moderation required. Add addresses one per line; start the line with a ^ character to designate a regular expression match.s Membership exposuret private_rostert Anyones List memberss List admin onlys Who can view subscription list?sg When set, the list of subscribers is protected by member or admin password authentication.t obscure_addressess[ Show member addresses so they're not directly recognizable as email addresses?su Setting this option causes member email addresses to be transformed when they are presented on list web pages (both in text and as links), so they're not trivially recognizable as email addresses. The intention is to prevent the addresses from being snarfed up by automated web scanners for use by spammers.t absolutes /Quarantinet s¨ When a message is posted to the list, a series of moderation steps are taken to decide whether a moderator must first approve the message or not. This section contains the controls for moderation of both member and non-member postings.
Member postings are held for moderation if their moderation flag is turned on. You can control whether member postings are moderated by default or not.
Non-member postings can be automatically accepted, held for moderation, rejected (bounced), or discarded, either individually or as a group. Any posting from a non-member who is not explicitly accepted, rejected, or discarded, will have their posting filtered by the general non-member rules.
In the text boxes below, add one address per line; start the line with a ^ character to designate a Python regular expression. When entering backslashes, do so as if you were using Python raw strings (i.e. you generally just use a single backslash).
Note that non-regexp matches are always done first.s Member filterst default_member_moderations9 By default, should new list member postings be moderated?s‰ Each list member has a moderation flag which says whether messages from the list member can be posted directly to the list, or must first be approved by the list moderator. When the moderation flag is turned on, list member postings must be approved first. You, the list administrator can decide whether a specific individual's postings will be moderated or not.
When a new member is subscribed, their initial moderation flag takes its value from this option. Turn this option off to accept member postings by default. Turn this option on to, by default, moderate member postings first. You can always manually set an individual member's moderation bit by using the membership management screens.t member_verbosity_thresholdi sg Ceiling on acceptable number of member posts, per interval, before automatic moderation.sš If a member posts this many times, within a period of time the member is automatically moderated. Use 0 to disable. See member_verbosity_interval for details on the time period.
This is intended to stop people who join a list or lists and then use a bot to send many spam messages in a short interval.
Be careful when using this setting. If it is set too low, this can be triggered by a single post cross-posted to multiple lists or by a single post to an umbrella list.t member_verbosity_intervalsœ Number of seconds to remember posts to this list to determine member_verbosity_threshold for automatic moderation of a member.sø If a member's total posts to all lists in this installation with member_verbosity_threshold enabled reaches this list's member_verbosity_threshold, the member is automatically moderated on this list.
Posts which are counted towards this list's member_verbosity_threshold are all posts to any list with member_verbosity_threshold enabled that arrived within that list's member_verbosity_interval.t member_moderation_actiont Holdt Rejectt DiscardsF Action to take when a moderated member posts to the list.s
This setting takes precedence over the from_is_list setting if the message is From: an affected domain and the setting is other than Accept.t" dmarc_quarantine_moderation_actions‚ Shall the above dmarc_moderation_action apply to messages From: domains with DMARC p=quarantine as well as p=rejectsù
If a message is From: a domain with DMARC p=quarantine and dmarc_moderation_action is not applied (this set to No) the message will likely not bounce, but will be delivered to recipients' spam folders or other hard to find places.t dmarc_none_moderation_actionsœ Shall the above dmarc_moderation_action apply to messages From: domains with DMARC p=none as well as p=quarantine and p=rejects
The intent of this setting is to eliminate failure reports to the owner of a domain that publishes DMARC p=none by applying the message transformations that would be applied if the domain's DMARC policy were stronger.t dmarc_moderation_noticesþ Text to include in any rejection notice to be sent to anyone who posts to this list from a domain with a DMARC Reject%(quarantine)s Policy.t dmarc_moderation_addressessí List of addresses (or regexps) whose posts should always apply dmarc_moderation_action regardless of any domain specific DMARC Policy.s» Postings from any of these addresses will automatically apply any DMARC action mitigation. This can be utilized to automatically wrap or munge postings from known addresses or domains that might have policies rejecting external mail From: themselves.
Add member addresses one per line; start the line with a ^ character to designate a regular expression match.t dmarc_wrapped_message_textsð If dmarc_moderation_action applies and is Wrap Message, and this text is provided, the text will be placed in a separate text/plain MIME part preceding the original message part in the wrapped message.sÕ A wrapped message will either be a multipart/mixed message with up to four sub-parts; a text/plain part containing msg_header, a text/plain part containing dmarc_wrapped_message_text, a message/rfc822 part containing the original message and a text/plain part containing msg_footer, or a message/rfc822 message containing only the original message if none of the other parts are applicable.t equivalent_domainssž A 'two dimensional' list of email address domains which are considered equivalent when checking if a post is from a list member.sK If two poster addresses with the same local part but different domains are to be considered equivalents for list membership tests, the domains are put here. The format is one or more groups of equivalent domains. Within a group, the domains are separated by commas and multiple groups are separated by semicolons. White space is ignored.
For example:
example.com,mail.example.com;mac.com,me.com,icloud.com
In this example, if user@example.com is a list member, a post from user@mail.example.com will be treated as if it is from user@example.com for list membership/moderation purposes, and likewise, if user@me.com is a list member, posts from user@mac.com or user@icloud.com will be treated as if from user@me.com.
Note that the poster's address is first tested for list membership, and the equivalent domain addresses are only tested if the poster's address is not that of a member.
Also note that moderation of the equivalent domain address will apply to the post, but other options such as 'ack' or 'not metoo' will not.s Non-member filterst accept_these_nonmemberssZ List of non-member addresses whose postings should be automatically accepted.s× Postings from any of these non-members will be automatically accepted with no further moderation applied. Add member addresses one per line; start the line with a ^ character to designate a regular expression match. A line consisting of the @ character followed by a list name specifies another Mailman list in this installation, all of whose member addresses will be accepted for this list.t hold_these_nonmemberssa List of non-member addresses whose postings will be immediately held for moderation.s‹ Postings from any of these non-members will be immediately and automatically held for moderation by the list moderators. The sender will receive a notification message which will allow them to cancel their held message. Add member addresses one per line; start the line with a ^ character to designate a regular expression match.t reject_these_nonmemberssX List of non-member addresses whose postings will be automatically rejected.s9 Postings from any of these non-members will be automatically rejected. In other words, their messages will be bounced back to the sender with a notification of automatic rejection. This option is not appropriate for known spam senders; their messages should be automatically discarded.
Add member addresses one per line; start the line with a ^ character to designate a regular expression match.t discard_these_nonmemberssY List of non-member addresses whose postings will be automatically discarded.s7 Postings from any of these non-members will be automatically discarded. That is, the message will be thrown away with no further processing or notification. The sender will not receive a notification or a bounce, however the list moderators can optionally receive copies of auto-discarded messages..
Add member addresses one per line; start the line with a ^ character to designate a regular expression match.t generic_nonmember_actionsb Action to take for postings from non-members for which no explicit action is defined.sG When a post from a non-member is received, the message's sender is matched against the list of explicitly accepted, held, rejected (bounced), and discarded addresses. If no match is found, then this action is taken.t forward_auto_discardssu Should messages from non-members, which are automatically discarded, be forwarded to the list moderator?t nonmember_rejection_notices÷ Text to include in any rejection notice to be sent to non-members who post to this list. This notice can include the list's owner address by %%(listowner)s and replaces the internally crafted default message.sg This section allows you to configure various filters based on the recipient of the message.s Recipient filterst require_explicit_destinations€ Must posts have list named in destination (to, cc) field (or be among the acceptable alias names, specified below)?sØ Many (in fact, most) spams do not explicitly name their myriad destinations in the explicit destination addresses - in fact often the To: field has a totally bogus address for obfuscation. The constraint applies only to the stuff in the address before the '@' sign, but still catches all such spams.
The cost is that the list will not accept unhindered any postings relayed from other addresses, unless
For backwards compatibility with Mailman 1.1, if the regexp does not contain an `@', then the pattern is matched against just the local part of the recipient address. If that match fails, or if the pattern does contain an `@', then the pattern is matched against the entire recipient address.
Matching against the local part is deprecated; in a future release, the pattern will always be matched against the entire recipient address.t max_num_recipientss9 Ceiling on acceptable number of recipients for a posting.sx If a posting has this number, or more, of recipients, it is held for admin approval. Use 0 for no ceiling.sÁ This section allows you to configure various anti-spam filters posting filters, which can help reduce the amount of spam your list members end up receiving. s Header filterst header_filter_ruless7 Filter rules to match against the headers of a message.sŽ Each header filter rule has two parts, a list of regular expressions, one per line, and an action to take. Mailman matches the message's headers against every regular expression in the rule and if any match, the message is rejected, held, or discarded based on the action you specify. Use Defer to temporarily disable a rule. You can have more than one filter rule for your list. In that case, each rule is matched in turn, with processing stopped after the first match. Note that headers are collected from all the attachments (except for the mailman administrivia message) and matched against the regular expressions. With this feature, you can effectively sort out messages with dangerous file types or file name extensions.s Legacy anti-spam filterst bounce_matching_headersi s9 Hold posts with header value matching a specified regexp.s« Use this option to prohibit posts according to specific header values. The target value is a regular-expression for matching against the specified header. The match is done disregarding letter case. Lines beginning with '#' are ignored as comments.
For example:
to: .*@public.comsays to hold all postings with a To: mail header containing '@public.com' anywhere among the addresses.
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