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I am running postfix, courier-imap and Atmail Webmail client. I can telnet to port 143 I can send mail from the command line using the mail command to the user. When I try to login through webmail using the atmail client nothing happens. I check the the maillog and it shows the localhost address... (0 Replies)
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Hello,
I want to use vacation autoreply with courier userdb
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I am running Freebsd 6.1, Postfix 2.2, and Courier-IMAP 4.1 I can telnet to port 143 I can't connect to IMAP server using microsoft outlook or any client. The authdaemon is running and working correctly I did netstat -an | grep -i list and it shows port 143 bound to the localhost 127.0.0.1. I can... (1 Reply)
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My box is freeBSD6 and I've installed courier-imap and I want to authenticate the clients against /etc/passwd file.
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LEARN ABOUT DEBIAN
dupfilter
DUPFILTER(8) Double Precision, Inc. DUPFILTER(8)
NAME
dupfilter - Sample Courier mail filter
SYNOPSIS
filterctl [[start] | [stop]] [dupfilter]
DESCRIPTION
This is an example global mail filter written in C. This is a threaded filter that tries to block junk E-mail by attempting to detect
multiple copies of the same message, which are rejected. This filter is presented mostly for educational purposes. It's method for
detecting duplicate messages is rather simplistic, and, over time, ways of defeating it will certainly proliferate.
dupfilter works by calculating a hash value of the contents of every message it sees. Hash values of recent messages are kept in a circular
FIFO queue. When dupfilter starts seeing messages with the same hash value, it will reject them. The hash value is calculated in such a way
as to try to detect minor changes to messages' contents that are designed to avoid these kinds of filters, but it's still not a very
sophisticated approach, and it can be easily fooled.
BUGS
This is not a very smart mail filter. The hash function is very simple and is not expected to be very useful.
Don't even think of using dupfilter on a machine that either runs a mailing list, or contains mailboxes that subscribe to mailing lists.
dupfilter likes to bounce mailing list traffic.
FILES
dupfilter uses the following configuration files. Changes to the following files do not take effect until the filter has been stopped and
restarted.
/etc/courier/filters/dupfilter-hashsize
This file contains a single numerical value that sets the size of dupfilter's circular FIFO queue.
/etc/courier/filters/dupfilter-duplevel
This file contains a single numerical value that sets how many identical messages dupfilter will tolerate before blocking them. When
this many identical messages are seen, dupfilter will start rejecting all messages with the same content.
/etc/courier/filters/dupfilter-mode
If this file exists and contains the word "all", dupfilter will create its socket in /var/lib/courier/allfilters, otherwise the socket
will be created in /var/lib/courier/filters, see courierfilter(8)[1] for more information.
/etc/courier/filters/dupfilter-nthreads
This file contains a single numerical value that sets the number of threads created (each thread is used to calculate a message's hash
value). The default number of threads is 4.
SEE ALSO
courierfilter(8)[1].
AUTHOR
Sam Varshavchik
Author
NOTES
1. courierfilter(8)
[set $man.base.url.for.relative.links]/courierfilter.html
Courier Mail Server 04/04/2011 DUPFILTER(8)