Browsing German translation

680.

Policies concerning the content of list traffic.

<p>Content filtering works like this: when a message is
received by the list and you have enabled content filtering, the
individual attachments are first compared to the
<a href="?VARHELP=contentfilter/filter_mime_types">filter
types</a>. If the attachment type matches an entry in the filter
types, it is discarded.

<p>Then, if there are <a
href="?VARHELP=contentfilter/pass_mime_types">pass types</a>
defined, any attachment type that does <em>not</em> match a
pass type is also discarded. If there are no pass types defined,
this check is skipped.

<p>After this initial filtering, any <tt>multipart</tt>
attachments that are empty are removed. If the outer message is
left empty after this filtering, then the whole message is
discarded.

<p> Then, each <tt>multipart/alternative</tt> section will
be replaced by just the first alternative that is non-empty after
filtering if
<a href="?VARHELP=contentfilter/collapse_alternatives"
>collapse_alternatives</a> is enabled.

<p>Finally, any <tt>text/html</tt> parts that are left in the
message may be converted to <tt>text/plain</tt> if
<a href="?VARHELP=contentfilter/convert_html_to_plaintext"
>convert_html_to_plaintext</a> is enabled and the site is
configured to allow these conversions.

691.

One of these actions is taken when the message matches one of
the content filtering rules, meaning, the top-level
content type matches one of the <a
href="?VARHELP=contentfilter/filter_mime_types"
>filter_mime_types</a>, or the top-level content type does
<strong>not</strong> match one of the
<a href="?VARHELP=contentfilter/pass_mime_types"
>pass_mime_types</a>, or if after filtering the subparts of the
message, the message ends up empty.

<p>Note this action is not taken if after filtering the message
still contains content. In that case the message is always
forwarded on to the list membership.

<p>When messages are discarded, a log entry is written
containing the Message-ID of the discarded message. When
messages are rejected or forwarded to the list owner, a reason
for the rejection is included in the bounce message to the
original author. When messages are preserved, they are saved in
a special queue directory on disk for the site administrator to
view (and possibly rescue) but otherwise discarded. This last
option is only available if enabled by the site
administrator.

748.

This is the address set in the <tt>Reply-To:</tt> header
when the <a
href="?VARHELP=general/reply_goes_to_list">reply_goes_to_list</a>
option is set to <em>Explicit address</em>.

<p>There are many reasons not to introduce or override the
<tt>Reply-To:</tt> header. One is that some posters depend on
their own <tt>Reply-To:</tt> settings to convey their valid
return address. Another is that modifying <tt>Reply-To:</tt>
makes it much more difficult to send private replies. See <a
href="http://www.unicom.com/pw/reply-to-harmful.html">`Reply-To'
Munging Considered Harmful</a> for a general discussion of this
issue. See <a
href="http://www.metasystema.net/essays/reply-to.mhtml">Reply-To
Munging Considered Useful</a> for a dissenting opinion.

<p>Some mailing lists have restricted posting privileges, with a
parallel list devoted to discussions. Examples are `patches' or
`checkin' lists, where software changes are posted by a revision
control system, but discussion about the changes occurs on a
developers mailing list. To support these types of mailing
lists, specify the explicit <tt>Reply-To:</tt> address here. You
must also specify <tt>Explicit address</tt> in the
<tt>reply_goes_to_list</tt>
variable.

<p>Note that if the original message contains a
<tt>Reply-To:</tt> header, it will not be changed.

782.

<a href="http://www.faqs.org/rfcs/rfc2822.html">RFC
2822</a> defines the <tt>Sender</tt> header and defines it
as "the mailbox of the agent responsible for the actual
transmission of the message." Mailman replaces this header
by default with the list's bounce address.

<p>While it is debatable if Mailman is such an agent, setting
this header helps directing bounces from some broken MTAs to
the right destination. On the other hand, some mail
readers show unexpected behaviour if this header is set (like
missing addresses in forwarded mails and copies sent to the
bounce address on reply-to-all), so it can be disabled
here.

817.

Other mailing lists on this site whose members are
excluded from the regular (non-digest) delivery if those
list addresses appear in a To: or Cc: header.

818.

The list addresses should be written in full mail address
format (e.g. mailman@example.com). Do not specify this list
address mutually in the exclude list configuration page of the
other list, or members of both lists won't get any message.
Note also that the site administrator may prohibit cross domain
siblings.

820.

If a post is addressed to this list and to one or more of
the exclude lists, regular members of those lists will not be
sent the post from this list, but if the poster is not a member
of an excluded list, the post may not be accepted by that list
which leaves the members of that list with no copy of the post.
Setting this to Yes ignores any of the exclude lists of which the
poster is not a member.

821.

Other mailing lists on this site whose members are
included in the regular (non-digest) delivery if those
list addresses don't appear in a To: or Cc: header.

822.

The list addresses should be written in full mail address
format (e.g. mailman@example.com). Note also that the site
administrator may prohibit cross domain siblings.

883.

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 <em>Defer</em> 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.