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Custom VMs From 1 to 96 vCPUs With 99.95% Uptime
General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.
Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
Rspamd is an advanced spam filtering system and email processing framework that allows evaluation of messages by a number of rules including regular expressions, statistical analysis and custom services such as URL black lists. Each message is analysed by Rspamd and given a verdict that might be used by MTA for further processing (e.g. to reject a message, or add a special header indicating spam) along with other information, such as possible DKIM signature or modifications suggested for a message. ...
Per user/admin filtering of individual/group emails
FreeMe is a lightweight e-mail filtering and reorganization tool for reducing clutter and highlighting messages of interest. It is intended to allow multiple administrators to specify individual rules for handling root e-mails, but can also be used in single-user mode.
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• Built-in multilayer security levels make configuration effort equal to a car radio.
• It combines simplicity with effective protection using powerful open source with additional set of rules & filters.
• Available as 64bit:
- ISO image (Internet connection required during installation)
- install from scratch (Internet connection required during installation).
• Minimum Requirements (for 5,000 messages/day):
1 GB of RAM
30 GB storage drive
1 Processor x86/AMD64
1 Ethernet x 1 IPv4 address
UDP ports: 53 123 4500 6277 24441
TCP ports: 25 80 443 2703
Obsolete SARE rule archive - SpamAssassin autogenerated rules
Archived SpamAssassin Rules Emporium (SARE)
(useful rules have been added to default SA - don't use the old stuff)
"SARE Ninja" SpamAssassin autogenerated rules
(partially mantained/updated)
LICENSE: Free as in speech. You get the picture...
DISCLAIMER:
- These rules are unsupported and may cause harm to your mailflow.
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javascript to convert thunderbird/seamonkey filters to sieve rules
Web form that converts pasted rule set from thunderbird/seamonkey msgFilterRules.dat filter file into sieve rules suitable for uploading to an imap mail server and compatible with the sieve rule editor plugin for roundcube 'sieverules' (http://www.roundcubeforum.net/7-third-party-contributions/46-api-based-plugins/4878-sieverules-plugin.html)
Fast Greylist daemon as a Postfix Access Policy Delegation Service with a variable extendable rule set. The rules are used for whitelisting, blacklisting and greylisting based on information from the SMTP dialog on a "per delivery attempt" basis.
Leveraging the efficiency of Net::Server's process pooling capabilities, ulppd is a fast, highly scalable daemon and framework simplifying the creation of arbitrary anti-spam and filtering rules written in perl.
Camel's Eye is a powerful POP3 email filter. It supports DNS-based Blackhole Lists (DNSBL/RBL), Razor, and rules that search header or body. Features include regular expressions, scoring, deletion on server, automatic whitelisting through an SMTP proxy.
AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
Server to read, process and send eMails used to apply business-rules on eMail traffic. Starting with rewriting mime headers up to do complex calculations is every possible using the build-in plug-in technology.
Linasf is a PHP implementation of a SpamAssassin-like spam filter. It uses Bayesian Filters, User-defined rules and Artificial Neural Networks to obtain excellent results.
Training and integration with current PHP system is very easy. (uses MySQL as DB)
NewsOutlook lets you set rules to receive, in your mailbox, only those Usenet articles and Syndication feeds (rss & atom) you are interested in. Rules can be applied on author and text (regex can be used as well) and are configured with a Web-based front
Small client to ask a clamav antivirus server is a file containt a virus. May be used with procmail or maildrop rules. Clamav library is not required to be installed on the running host.
Mail::SpamAssassin::SpamCopURI is a plugin to Mail::SpamAssassin. It consults the list of spamvertised sites on www.spamcop.net and provides rules to allow scoring of blacklisted urls.
See http://www.surbl.org for more information about the source data
POPMail applies user-defined rules to messages
in a mailbox in order to allow you to delete some emails before
receiving them. For example, you can delete emails with a given
From: (sender) header, or larger than a max size.
A simple, small-scale mail delivery agent (MDA) and SMTP relay written in Perl which allows filtering and modification of both incoming and outgoing messages using arbitrary, per-user or site-wide rules. Requires "Maildir"-style mail storage.
IMAP-Agent is an automated IMAP mail folder management system implementing site wide and
individual user specific rules for filtering mail between folders.
Also, quotas can be maintained by age or max count of
messages for any folder.
Deny-Spammers is a daemon that interfaces to the mail transfer agent and the firewall ruleset control program. It uses a strategy based upon patterns that spammers produce to dynamically update the server's ingress rules.