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relaydb is a mail header analyzer that builds a database of IP addresses either known as legitimate senders or spammers. relaydb doesn't itself classify mails as legitimate or spam, that decision needs to be reached through other means. Neither does relaydb block spam itself. It merely provides a list of IP addresses to block through other means.

This is a python extension module to enable python scripts to attach to sendmail's libmilter functionality. Additional python modules provide for navigating and modifying MIME parts, and sending DSNs or doing CBVs.

SpamControl is a collection of patches for qmail developed and maintained by Erwin Hoffmann (feh@fehcom.de). Some SpamControl features: smtp-auth (plain, login and cram-md5), requirement of brackets on addresses, qmail-queue, bigtodo, moreipme, recipients, STARTTLS...

qmailmrtg7 utilizes qmail and tcpserver/multilog's extensive logging capabilities to create mrtg graphs. It efficiently processes the logs (large sites with historical logs of over 100MB can be processed in a few seconds). For qmail it graphs remote/local delivery concurrency, queue size, messages process, bytes transferred, and success/failure delivery status. For POP and SMTP it graphs total connections and concurrency.

The qtools package comprises several utilities for use with qmail, typically as part of .qmail command processing. Included are tools to extract the message body, extract all or parts of the header, check an address list for a matching address or domain, message filtering and forwarding, write to a maildir, and automatically reply to certain messages.

Clawsker is an applet to edit Claws Mail's hidden preferences. Claws Mail has a high number of configurable options and, in order to keep the binary small and fast, some of these preferences which are not widely used are not provided with a graphical interface for inspection and/or modification. Users wanting to edit such preferences had to face editing the configuration text files directly, now it is possible with a convenient GTK2 interface using Clawsker. Other features: * Handling of all hidden preferences * Fully internationalized interface using gettext * Detection of running Claws Mail * Support for alternate configuration directories

renattach is a fast and efficient e-mail stream filter written by Jem Berkes. It can rename or delete potentially dangerous attachments or even eliminate entire messages to help sites deal with resource strains caused by virus floods. Unlike conventional virus scanners, there are no specific virus or worm definitions. Instead, attachments are classified based on file extension and executable encoded body content. Features - Fast, efficient, lightweight, little overhead, pure C code - Recognizes both MIME and uuencoded attachments - Compliant with RFC2047 and RFC2231, handles encoded filenames - Capable of reading filenames inside ZIP archives, on the fly - Can rename or delete attachments, or kill entire messages - Can detect executables that carry DOS/Windows signature - Supports list of banned filenames (great for handling floods) - Simple pipe/stream operation; can be used within many filtering systems - Can be used directly as a content_filter for Postfix MTA - Can be installed as a local delivery agent for Sendmail MTA

This is a plugin for the Roundcube webmailer to access CardDAV servers like owncloud, davical, a Google addressbook or a davmail server. RCMCardDAV supports autodiscovery of your addressbook url via well-known URLs so you can just point it to your servers base url.

Roundcube plugin to manage SpamAssassin preferences. Adds a 'Spam' tab to the 'Personal Settings' to allow the user to change their SpamAssassin preferences. Preferences must be stored in a SQL database. Default preferences are used when no user preference is found.

Another one sieve filter plugin for roundcube webmail.