* Editing IMAP ACLs:: Limiting/enabling other users access to a mailbox.
* Expunging mailboxes:: Equivalent of a ``compress mailbox'' button.
* A note on namespaces:: How to (not) use @acronym{IMAP} namespace in Gnus.
+* Debugging IMAP:: What to do when things don't work.
Other Sources
to a particular group by using a match string like
@samp{shaving group:alt.sysadmin.recovery}.
+@item G R
+@kindex G R (Group)
+@findex gnus-group-make-rss-group
+Make a group based on an @acronym{RSS} feed
+(@code{gnus-group-make-rss-group}). You will be prompted for an URL.
+@xref{RSS}.
+
@item G DEL
@kindex G DEL (Group)
@findex gnus-group-delete-group
actually delete all the articles in the group, and forcibly remove the
group itself from the face of the Earth. Use a prefix only if you are
absolutely sure of what you are doing. This command can't be used on
-read-only groups (like @code{nntp} group), though.
+read-only groups (like @code{nntp} groups), though.
@item G V
@kindex G V (Group)
verb, although you may feel free to disagree with me here.)
@example
+@group
Gnus
Emacs
3: comp.emacs
8: comp.binaries.fractals
13: comp.sources.unix
452: alt.sex.emacs
+@end group
@end example
The @samp{Emacs} topic has the topic parameter @code{(score-file
(nnweb "google" (nnweb-type google))))
@end lisp
-Most of the mail back ends support fetching by @code{Message-ID}, but
-do not do a particularly excellent job at it. That is, @code{nnmbox},
-@code{nnbabyl}, and @code{nnmaildir} are able to locate articles from
-any groups, while @code{nnml}, @code{nnfolder}, and @code{nnimap} are
+Most of the mail back ends support fetching by @code{Message-ID}, but do
+not do a particularly excellent job at it. That is, @code{nnmbox},
+@code{nnbabyl}, @code{nnmaildir}, @code{nnml}, are able to locate
+articles from any groups, while @code{nnfolder}, and @code{nnimap} are
only able to locate articles that have been posted to the current group.
(Anything else would be too time consuming.) @code{nnmh} does not
support this at all.
@table @kbd
@item Z Z
+@itemx Z Q
@itemx q
@kindex Z Z (Summary)
+@kindex Z Q (Summary)
@kindex q (Summary)
@findex gnus-summary-exit
@vindex gnus-summary-exit-hook
(@code{gnus-summary-catchup-and-goto-next-group}).
@item Z R
+@itemx C-x C-s
@kindex Z R (Summary)
+@kindex C-x C-s (Summary)
@findex gnus-summary-reselect-current-group
Exit this group, and then enter it again
(@code{gnus-summary-reselect-current-group}). If given a prefix, select
You can hide further boring headers by setting
@code{gnus-treat-hide-boring-headers} to @code{head}. What this function
does depends on the @code{gnus-boring-article-headers} variable. It's a
-list, but this list doesn't actually contain header names. Instead is
+list, but this list doesn't actually contain header names. Instead it
lists various @dfn{boring conditions} that Gnus can check and remove
from sight.
Remove the @code{Followup-To} header if it is identical to the
@code{Newsgroups} header.
@item reply-to
-Remove the @code{Reply-To} header if it lists the same address as the
-@code{From} header, or if the @code{broken-reply-to} group parameter is
-set.
+Remove the @code{Reply-To} header if it lists the same addresses as
+the @code{From} header, or if the @code{broken-reply-to} group
+parameter is set.
@item newsgroups
Remove the @code{Newsgroups} header if it only contains the current group
name.
up to @samp{\\9} will be substituted with the text matched by the
groupings 1 through 9.
+@vindex nnmail-split-fancy-match-partial-words
+@code{nnmail-split-fancy-match-partial-words} controls whether partial
+words are matched during fancy splitting.
+
+Normally, regular expressions given in @code{nnmail-split-fancy} are
+implicitly surrounded by @code{\<...\>} markers, which are word
+delimiters. If this variable is true, they are not implicitly
+surrounded by anything.
+
+@example
+(any "joe" "joemail")
+@end example
+
+In this example, messages sent from @samp{joedavis@@foo.org} will
+normally not be filed in @samp{joemail}. With
+@code{nnmail-split-fancy-match-partial-words} set to t, however, the
+match will happen. In effect, the requirement of a word boundary is
+removed and instead the match becomes more like a grep.
+
@findex nnmail-split-fancy-with-parent
@code{nnmail-split-fancy-with-parent} is a function which allows you to
split followups into the same groups their parents are in. Sometimes
When following up to @code{nnslashdot} comments (or posting new
comments), some light @acronym{HTML}izations will be performed. In
particular, text quoted with @samp{> } will be quoted with
-@code{blockquote} instead, and signatures will have @code{br} added to
+@samp{blockquote} instead, and signatures will have @samp{br} added to
the end of each line. Other than that, you can just write @acronym{HTML}
directly into the message buffer. Note that Slashdot filters out some
@acronym{HTML} forms.
@item nnslashdot-active-url
@vindex nnslashdot-active-url
-The @sc{url} format string that will be used to fetch the information on
-news articles and comments. The default is@*
+The @acronym{URL} format string that will be used to fetch the
+information on news articles and comments. The default is@*
@samp{http://slashdot.org/search.pl?section=&min=%d}.
@item nnslashdot-comments-url
@vindex nnslashdot-comments-url
-The @sc{url} format string that will be used to fetch comments. The
-default is
-@samp{http://slashdot.org/comments.pl?sid=%s&threshold=%d&commentsort=%d&mode=flat&startat=%d}.
+The @acronym{URL} format string that will be used to fetch comments.
@item nnslashdot-article-url
@vindex nnslashdot-article-url
-The @sc{url} format string that will be used to fetch the news article. The
-default is
+The @acronym{URL} format string that will be used to fetch the news
+article. The default is
@samp{http://slashdot.org/article.pl?sid=%s&mode=nocomment}.
@item nnslashdot-threshold
The easiest way to get started with @code{nnultimate} is to say
something like the following in the group buffer: @kbd{B nnultimate RET
-http://www.tcj.com/messboard/ubbcgi/ RET}. (Substitute the @sc{url}
+http://www.tcj.com/messboard/ubbcgi/ RET}. (Substitute the @acronym{URL}
(not including @samp{Ultimate.cgi} or the like at the end) for a forum
you're interested in; there's quite a list of them on the Ultimate web
site.) Then subscribe to the groups you're interested in from the
@cindex nnrss
@cindex RSS
-Some sites have RDF site summary (RSS)
-@uref{http://purl.org/rss/1.0/spec}. It has a quite regular and nice
-interface, and it's possible to get the information Gnus needs to keep
-groups updated.
+Some web sites have an RDF Site Summary (@acronym{RSS}).
+@acronym{RSS} is a format for summarizing headlines from news related
+sites (such as BBC or CNN). But basically anything list-like can be
+presented as an @acronym{RSS} feed: weblogs, changelogs or recent
+changes to a wiki (e.g. @url{http://cliki.net/recent-changes.rdf}).
+
+@acronym{RSS} has a quite regular and nice interface, and it's
+possible to get the information Gnus needs to keep groups updated.
-The easiest way to get started with @code{nnrss} is to say something
-like the following in the group buffer: @kbd{B nnrss RET RET}, then
-subscribe groups.
+Use @kbd{G R} from the summary buffer to subscribe to a feed---you
+will be prompted for the location of the feed.
+
+An easy way to get started with @code{nnrss} is to say something like
+the following in the group buffer: @kbd{B nnrss RET y}, then
+subscribe to groups.
The following @code{nnrss} variables can be altered:
The directory where @code{nnrss} stores its files. The default is
@file{~/News/rss/}.
+@item nnrss-use-local
+@vindex nnrss-use-local
+@findex nnrss-generate-download-script
+If you set @code{nnrss-use-local} to @code{t}, @code{nnrss} will read
+the feeds from local files in @code{nnrss-directory}. You can use
+the command @code{nnrss-generate-download-script} to generate a
+download script using @command{wget}.
@end table
The following code may be helpful, if you want to show the description in
* Editing IMAP ACLs:: Limiting/enabling other users access to a mailbox.
* Expunging mailboxes:: Equivalent of a ``compress mailbox'' button.
* A note on namespaces:: How to (not) use @acronym{IMAP} namespace in Gnus.
+* Debugging IMAP:: What to do when things don't work.
@end menu
for more information on how to use the prefixes. They are a power
tool and should be used only if you are sure what the effects are.
+@node Debugging IMAP
+@subsection Debugging IMAP
+@cindex IMAP debugging
+@cindex protocol dump (IMAP)
+
+@acronym{IMAP} is a complex protocol, more so than @acronym{NNTP} or
+@acronym{POP3}. Implementation bugs are not unlikely, and we do our
+best to fix them right away. If you encounter odd behaviour, chances
+are that either the server or Gnus is buggy.
+
+If you are familiar with network protocols in general, you will
+probably be able to extract some clues from the protocol dump of the
+exchanges between Gnus and the server. Even if you are not familiar
+with network protocols, when you include the protocol dump in
+@acronym{IMAP}-related bug reports you are helping us with data
+critical to solving the problem. Therefore, we strongly encourage you
+to include the protocol dump when reporting IMAP bugs in Gnus.
+
+
+@vindex imap-log
+Because the protocol dump, when enabled, generates lots of data, it is
+disabled by default. You can enable it by setting @code{imap-log} as
+follows:
+
+@lisp
+(setq imap-log t)
+@end lisp
+
+This instructs the @code{imap.el} package to log any exchanges with
+the server. The log is stored in the buffer @samp{*imap-log*}. Look
+for error messages, which sometimes are tagged with the keyword
+@code{BAD} - but when submitting a bug, make sure to include all the
+data.
+
@node Other Sources
@section Other Sources
gnus-extra-headers, you can score on these headers' values. In this
case, there is a 5th element in the score entry, being the name of the
header to be scored. The following entry is useful in your
-@file{all.SCORE} file in case of spam attacks from a single origin host,
-if your @acronym{NNTP} server tracks NNTP-Posting-Host in overviews:
+@file{all.SCORE} file in case of spam attacks from a single origin
+host, if your @acronym{NNTP} server tracks @samp{NNTP-Posting-Host} in
+overviews:
@lisp
-("111.222.333.444" -1000 nil s "NNTP-Posting-Host")
+("111.222.333.444" -1000 nil s
+ "NNTP-Posting-Host")
@end lisp
@item Lines, Chars
@lisp
(defun gnus-decay-score (score)
- "Decay SCORE.
-This is done according to `gnus-score-decay-constant'
+ "Decay SCORE according to `gnus-score-decay-constant'
and `gnus-score-decay-scale'."
- (floor
- (- score
- (* (if (< score 0) 1 -1)
- (min (abs score)
- (max gnus-score-decay-constant
- (* (abs score)
- gnus-score-decay-scale)))))))
+ (let ((n (- score
+ (* (if (< score 0) -1 1)
+ (min (abs score)
+ (max gnus-score-decay-constant
+ (* (abs score)
+ gnus-score-decay-scale)))))))
+ (if (and (featurep 'xemacs)
+ ;; XEmacs' floor can handle only the floating point
+ ;; number below the half of the maximum integer.
+ (> (abs n) (lsh -1 -2)))
+ (string-to-number
+ (car (split-string (number-to-string n) "\\.")))
+ (floor n))))
@end lisp
@vindex gnus-score-decay-scale
(@pxref{Fancy Mail Splitting}):
@lisp
-(
- ...
+(...
(to "larsi@@trym.ifi.uio.no"
- (| ("subject" "re:.*" "misc")
- ("references" ".*@@.*" "misc")
- "spam"))
- ...
-)
+ (| ("subject" "re:.*" "misc")
+ ("references" ".*@@.*" "misc")
+ "spam"))
+ ...)
@end lisp
This says that all mail to this address is suspect, but if it has a
'((file :prescript "formail -bs spamassassin < /var/mail/%u")
(pop :user "jrl"
:server "pophost"
- :postscript "mv %t /tmp/foo; formail -bs spamc < /tmp/foo > %t")))
+ :postscript
+ "mv %t /tmp/foo; formail -bs spamc < /tmp/foo > %t")))
@end lisp
Once you manage to process your incoming spool somehow, thus making
First of all, you @strong{must} run the function
@code{spam-initialize} to autoload @code{spam.el} and to install the
-@code{spam.el} hooks:
+@code{spam.el} hooks. There is one exception: if you use the
+@code{spam-use-stat} (@pxref{spam-stat spam filtering}) setting, you
+should turn it on before @code{spam-initialize}:
@example
+(setq spam-use-stat t) ;; if needed
(spam-initialize)
@end example
-So, what happens when you load @file{spam.el}?
+So, what happens when you load @file{spam.el}?
You get the following keyboard commands:
parameter or a match in the @code{gnus-ham-process-destinations}
variable, which is a list of regular expressions matched with group
names (it's easiest to customize this variable with
-@code{customize-variable gnus-ham-process-destinations}). The ultimate
-location is a group name. If the @code{ham-process-destination}
-parameter is not set, ham articles are left in place. If the
+@code{customize-variable gnus-ham-process-destinations}). Each
+newsgroup specification has the format (REGEXP PROCESSOR) in a
+standard Lisp list, if you prefer to customize the variable manually.
+The ultimate location is a group name. If the
+@code{ham-process-destination} parameter is not set, ham articles are
+left in place. If the
@code{spam-mark-ham-unread-before-move-from-spam-group} parameter is
set, the ham articles are marked as unread before being moved.
@code{gnus-spam-process-destinations} variable, which is a list of
regular expressions matched with group names (it's easiest to
customize this variable with @code{customize-variable
-gnus-spam-process-destinations}). The ultimate location is a group
-name. If the @code{spam-process-destination} parameter is not set,
-the spam articles are only expired.
+gnus-spam-process-destinations}). Each newsgroup specification has
+the repeated format (REGEXP PROCESSOR) and they are all in a standard
+Lisp list, if you prefer to customize the variable manually. The
+ultimate location is a group name. If the
+@code{spam-process-destination} parameter is not set, the spam
+articles are only expired.
To use the @file{spam.el} facilities for incoming mail filtering, you
must add the following to your fancy split list
The @code{spam-split} function will process incoming mail and send the
mail considered to be spam into the group name given by the variable
@code{spam-split-group}. By default that group name is @samp{spam},
-but you can customize @code{spam-split-group}.
+but you can customize @code{spam-split-group}. Make sure the contents
+of @code{spam-split-group} are an @emph{unqualified} group name, for
+instance in an @code{nnimap} server @samp{your-server} the value
+@samp{spam} will turn out to be @samp{nnimap+your-server:spam}. The
+value @samp{nnimap+server:spam}, therefore, is wrong and will
+actually give you the group
+@samp{nnimap+your-server:nnimap+server:spam} which may or may not
+work depending on your server's tolerance for strange group names.
You can also give @code{spam-split} a parameter,
-e.g. @samp{'spam-use-regex-headers}. Why is this useful?
+e.g. @samp{'spam-use-regex-headers} or @samp{"maybe-spam"}. Why is
+this useful?
Take these split rules (with @code{spam-use-regex-headers} and
@code{spam-use-blackholes} set):
@example
nnimap-split-fancy '(|
- (: spam-split 'spam-use-regex-headers)
+;;; all spam detected by spam-use-regex-headers goes to "regex-spam"
+ (: spam-split "regex-spam" 'spam-use-regex-headers)
(any "ding" "ding")
+;;; all other spam detected by spam-split goes to spam-split-group
(: spam-split)
;; default mailbox
"mail")
@end example
Basically, this lets you invoke specific @code{spam-split} checks
-depending on your particular needs. You don't have to throw all mail
+depending on your particular needs, and to target the results of those
+checks to a particular spam group. You don't have to throw all mail
into all the spam tests. Another reason why this is nice is that
messages to mailing lists you have rules for don't have to have
resource-intensive blackhole checks performed on them. You could also
@item
Try doing an @kbd{M-x gnus-version}. If you get something that looks
like @samp{T-gnus 6.16.* (based on Gnus v5.10.*; for SEMI 1.1*, FLIM
-1.1*)} you have the right files loaded. If, on the other hand, you get
-something like @samp{NNTP 3.x} or @samp{nntp flee}, you have some old
+1.1*)} you have the right files loaded. Otherwise you have some old
@file{.el} files lying around. Delete these.
@item
projects / elisp / gnus.git- / blobdiff