products are self-installing and can be used without deep knowledge of
Linux.
-image::images/Proxmox-Mailprocessing.png[]
+image::images/Proxmox_Mail_Gateway_Mailprocessing_final_1024.png[]
Features
--------
Receiver Verification::
Many of the junk messages reaching your network are emails to
-non-existent useres. Proxmox Mail Gateway detects these emails on SMTP
+non-existent users. {pmg} detects these emails on SMTP
level, which means before they are transferred to your networks. This
reduces the traffic to be analyzed for spam and viruses up to 90% and
reduces the working load on your mail servers and scanners.
Bayesian Filter - Automatically trained statistical filters::
Some particular words have a higher probability of occurring in spam
-emails rather than in legitimate emails. By beeing trained to
+emails rather than in legitimate emails. By being trained to
recognize those words, the Bayesian checks every email and adjusts the
-probabilities of it beeing a spam word or not in its database. This is
+probabilities of it being a spam word or not in its database. This is
done automatically.
Black- and Whitelists::
Autolearning algorithm::
-Proxmox Mail Gateway gathers statistical information about spam
+{pmg} gathers statistical information about spam
emails. This information is used by an autolearning algorithm, so the
system becomes smarter over time.
never reaches your mail server and thus your mail server will not send
useless "Non Delivery Reports" to spammers.
+SMTP Protocol Tests::
+
+{postfix} is able to do some sophisticated SMTP protocol tests (see
+`man postscreen`). Most spam is sent out by zombies (malware on
+compromised end-user computers), and those zombies often try to
+maximize the amount of mails delivered. In order to do that, many of
+them violates the SMTP protocol specification and can thus be detected
+by these tests.
+
Virus detection
~~~~~~~~~~~~~~~
{pmg} integrates {clamav}, which is an open-source (GPL) antivirus
-engine designed for detecting trojans, viruses, malware and other
+engine designed for detecting Trojans, viruses, malware and other
malicious threats.
It provides a high performance mutli-threaded scanning daemon, command
user, domains, time frame, content type and resulting action. {pmg}
offers a lot of powerful objects to configure your own custom system.
-ACTIONS - objects::
-
-Defines the final actions.
-
WHO - objects::
Who is the sender or receiver of the e-mail?
WHEN - objects::
-When is the e-mail received by Proxmox Mail Gateway?
+When is the e-mail received by {pmg}?
+
+ACTIONS - objects::
+
+Defines the final actions.
Every rule has five categories FROM, TO, WHEN, WHAT and ACTION. Every
of these categories can contain several objects and a direction (in,
of e-mails and generating notifications.
+Spam Quarantine
+~~~~~~~~~~~~~~~
+
+Identified Spam mails can be stored to the user accessible Spam
+quarantine. Thus users can view and manage there Spam mails by
+themselves.
+
+
Tracking and Logging
~~~~~~~~~~~~~~~~~~~~
The innovative Proxmox Message Tracking Center tracks and summarizes
all available logs. With the web-based and user friendly management
-interface, the IT admins can easily overview and controll all
+interface, the IT admins can easily overview and control all
functions from a single screen.
The Message Tracking Center is very fast and powerful, tested on {pmg}
management keep resource needs low. After temporary failures, nodes
automatically reintegrate without any operator interaction.
+LDAP integration
+~~~~~~~~~~~~~~~~
+
+It is possible to query user and group data from LDAP servers. This
+may be used to build special filter rules, or just to provide
+authentication services for the Spam quarantine GUI.
+
+
+Fetchmail integration
+~~~~~~~~~~~~~~~~~~~~~
+
+{pmg} allows you to fetch mail from other IMAP or POP3 servers.
+
+
+Flexible User Management
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+The administration interface uses a role based access control scheme,
+using the following roles:
+
+Superuser::
+
+This role is allowed to do everything (reserved for user 'root').
+
+Administrator::
+
+Full access to mail filter setup, but not allowed to change network setup.
+
+Quarantine Manager::
+
+Is able to view and manage the Spam Quarantine.
+
+Auditor::
+
+Has read-only access to the whole configuration, can access logs and
+view statistics.
+
Your benefit with {pmg}
-----------------------