-``Reply-To'' field which points back to the mailing list address rather
-than the author of the message. This can create problems when trying
-to reply directly to the author in private, since most mail clients
-will automatically reply to the address given in the ``Reply-To''
-field. Mutt uses the <a href="reference.html#reply-to" title="3.242. reply_to">$reply_to</a>
-variable to help decide which address to use. If set to <span class="emphasis"><em>ask-yes</em></span> or
-<span class="emphasis"><em>ask-no</em></span>, you will be
-prompted as to whether or not you would like to use the address given in
-the ``Reply-To'' field, or reply directly to the address given in the
-``From'' field. When set to <span class="emphasis"><em>yes</em></span>, the ``Reply-To'' field will be used when
-present.
-</p><p>
-The ``X-Label:'' header field can be used to further identify mailing
-lists or list subject matter (or just to annotate messages
-individually). The <a href="reference.html#index-format" title="3.100. index_format">$index_format</a> variable's ``%y'' and
-``%Y'' escapes can be used to expand ``X-Label:'' fields in the
-index, and Mutt's pattern-matcher can match regular expressions to
-``X-Label:'' fields with the ``˜y'' selector. ``X-Label:'' is not a
-standard message header field, but it can easily be inserted by procmail
-and other mail filtering agents.
-</p><p>
-Lastly, Mutt has the ability to <a href="reference.html#sort" title="3.270. sort">sort</a> the mailbox into
-<a href="gettingstarted.html#threads" title="3.3. Threaded Mode">threads</a>. A thread is a group of messages which all relate to the same
-subject. This is usually organized into a tree-like structure where a
-message and all of its replies are represented graphically. If you've ever
-used a threaded news client, this is the same concept. It makes dealing
-with large volume mailing lists easier because you can easily delete
-uninteresting threads and quickly find topics of value.
-</p></div><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="editing-threads"></a>9. Editing threads</h2></div></div></div><p>
+<span class="quote">“<span class="quote">Reply-To</span>”</span> field which points back to the mailing list
+address rather than the author of the message. This can create problems
+when trying to reply directly to the author in private, since most mail
+clients will automatically reply to the address given in the
+<span class="quote">“<span class="quote">Reply-To</span>”</span> field. Mutt uses the <a class="link" href="reference.html#reply-to" title="3.215. reply_to">$reply_to</a> variable to help decide which
+address to use. If set to <span class="emphasis"><em>ask-yes</em></span> or
+<span class="emphasis"><em>ask-no</em></span>, you will be prompted as to whether or not
+you would like to use the address given in the <span class="quote">“<span class="quote">Reply-To</span>”</span>
+field, or reply directly to the address given in the <span class="quote">“<span class="quote">From</span>”</span>
+field. When set to <span class="emphasis"><em>yes</em></span>, the
+<span class="quote">“<span class="quote">Reply-To</span>”</span> field will be used when present.
+</p><p>
+The <span class="quote">“<span class="quote">X-Label:</span>”</span> header field can be used to further identify
+mailing lists or list subject matter (or just to annotate messages
+individually). The <a class="link" href="reference.html#index-format" title="3.114. index_format">$index_format</a>
+variable's <span class="quote">“<span class="quote">%y</span>”</span> and <span class="quote">“<span class="quote">%Y</span>”</span> expandos can be used
+to expand <span class="quote">“<span class="quote">X-Label:</span>”</span> fields in the index, and Mutt's
+pattern-matcher can match regular expressions to <span class="quote">“<span class="quote">X-Label:</span>”</span>
+fields with the <span class="quote">“<span class="quote">~y</span>”</span> selector. <span class="quote">“<span class="quote">X-Label:</span>”</span> is
+not a standard message header field, but it can easily be inserted by
+procmail and other mail filtering agents.
+</p><p>
+Lastly, Mutt has the ability to <a class="link" href="reference.html#sort" title="3.264. sort">sort</a> the
+mailbox into <a class="link" href="gettingstarted.html#threads" title="5.3. Threaded Mode">threads</a>. A thread is a
+group of messages which all relate to the same subject. This is usually
+organized into a tree-like structure where a message and all of its
+replies are represented graphically. If you've ever used a threaded
+news client, this is the same concept. It makes dealing with large
+volume mailing lists easier because you can easily delete uninteresting
+threads and quickly find topics of value.
+</p></div><div class="sect1" title="10. New Mail Detection"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="new-mail"></a>10. New Mail Detection</h2></div></div></div><p>
+Mutt supports setups with multiple folders, allowing all of them to be
+monitored for new mail (see <a class="xref" href="configuration.html#mailboxes" title="14. Monitoring Incoming Mail">Section 14, “Monitoring Incoming Mail”</a> for details).
+</p><div class="sect2" title="10.1. How New Mail Detection Works"><div class="titlepage"><div><div><h3 class="title"><a id="new-mail-formats"></a>10.1. How New Mail Detection Works</h3></div></div></div><p>
+For Mbox and Mmdf folders, new mail is detected by comparing access
+and/or modification times of files: Mutt assumes a folder has new mail
+if it wasn't accessed after it was last modified. Utilities like
+<code class="literal">biff</code> or <code class="literal">frm</code> or any other program
+which accesses the mailbox might cause Mutt to never detect new mail for
+that mailbox if they do not properly reset the access time. Other
+possible causes of Mutt not detecting new mail in these folders are
+backup tools (updating access times) or filesystems mounted without
+access time update support (for Linux systems, see the
+<code class="literal">relatime</code> option).
+</p><div class="note" title="Note"><h3 class="title">Note</h3><p>
+Contrary to older Mutt releases, it now maintains the new mail status of
+a folder by properly resetting the access time if the folder contains at
+least one message which is neither read, nor deleted, nor marked as old.
+</p></div><p>
+In cases where new mail detection for Mbox or Mmdf folders appears to be
+unreliable, the <a class="link" href="reference.html#check-mbox-size" title="3.26. check_mbox_size">$check_mbox_size</a>
+option can be used to make Mutt track and consult file sizes for new
+mail detection instead which won't work for size-neutral changes.
+</p><p>
+New mail for Maildir is assumed if there is one message in the
+<code class="literal">new/</code> subdirectory which is not marked deleted (see
+<a class="link" href="reference.html#maildir-trash" title="3.123. maildir_trash">$maildir_trash</a>). For MH folders, a
+mailbox is considered having new mail if there's at least one message in
+the <span class="quote">“<span class="quote">unseen</span>”</span> sequence as specified by <a class="link" href="reference.html#mh-seq-unseen" title="3.140. mh_seq_unseen">$mh_seq_unseen</a>.
+</p><p>
+Mutt does not poll POP3 folders for new mail, it only periodically
+checks the currently opened folder (if it's a POP3 folder).
+</p><p>
+For IMAP, by default Mutt uses recent message counts provided by the
+server to detect new mail. If the <a class="link" href="reference.html#imap-idle" title="3.100. imap_idle">$imap_idle</a> option is set, it'll use the IMAP
+IDLE extension if advertised by the server.
+</p></div><div class="sect2" title="10.2. Polling For New Mail"><div class="titlepage"><div><div><h3 class="title"><a id="new-mail-polling"></a>10.2. Polling For New Mail</h3></div></div></div><p>
+When in the index menu and being idle (also see <a class="link" href="reference.html#timeout" title="3.292. timeout">$timeout</a>), Mutt periodically checks for new
+mail in all folders which have been configured via the
+<span class="command"><strong>mailboxes</strong></span> command. The interval depends on the folder
+type: for local/IMAP folders it consults <a class="link" href="reference.html#mail-check" title="3.118. mail_check">$mail_check</a> and <a class="link" href="reference.html#pop-checkinterval" title="3.188. pop_checkinterval">$pop_checkinterval</a> for POP folders.
+</p><p>
+Outside the index menu the directory browser supports checking for new
+mail using the <code class="literal"><check-new></code> function which is
+unbound by default. Pressing TAB will bring up a menu showing the files
+specified by the <span class="command"><strong>mailboxes</strong></span> command, and indicate
+which contain new messages. Mutt will automatically enter this mode when
+invoked from the command line with the <code class="literal">-y</code> option.
+</p><p>
+For the pager, index and directory browser menus, Mutt contains the
+<code class="literal"><buffy-list></code> function (bound to
+<span class="quote">“<span class="quote">.</span>”</span> by default) which will print a list of folders with new
+mail in the command line at the bottom of the screen.
+</p><p>
+For the index, by default Mutt displays the number of mailboxes with new
+mail in the status bar, please refer to the <a class="link" href="reference.html#status-format" title="3.283. status_format">$status_format</a> variable for details.
+</p><p>
+When changing folders, Mutt fills the prompt with the first folder from
+the mailboxes list containing new mail (if any), pressing
+<code class="literal"><Space></code> will cycle through folders with new
+mail. The (by default unbound) function
+<code class="literal"><next-unread-mailbox></code> in the index can be used
+to immediately open the next folder with unread mail (if any).
+</p></div></div><div class="sect1" title="11. Editing Threads"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="editing-threads"></a>11. Editing Threads</h2></div></div></div><p>
projects / software / mutt-debian.git / blobdiff