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Enterprise Anti-Spam Filtering
Posted by Kevin Stange, Last modified by Karl Zimmerman on 05 June 2011 03:35 AM
On February 11th, 2011, we deployed a new filtering solution based on SpamExperts, which provides additional redundancy and IPv6 support, as well as much more granular control over filtering and user access. This documentation explains some of the core features and how to use them.
It's now possible for all customers to add and remove domains without administrator assistance. To do this, go to "Domains" and select "Add domain" then specify the new domain and route you wish to add. Once this is done, you can begin using the filtering system by changing the MX records for your domains as follows:
Per-domain and per-mailbox user creation
It's now possible to create per-domain and per-mailbox user accounts. By selecting "Permissions" under the "Users" heading, it is possible to create restrictions on which features the user accounts may access.
Per-mailbox users are created by selecting "Webinterface users" under the "Users" heading. These users may:
Per-domain users are created by selecting "Manage domain users" under the "Users" heading. These users may:
Quarantine Access and Spam Reporting
There are three ways a user can access his quarantine and report spam:
Any user with a domain or webinterface (per-mailbox) account can access any method.
Using the Web Interface
When logged into the web interface, a domain or webinterface user can use the "Report Spam" or "Spam Quarantine" options to manage the quarantine and report misclassified messages.
Setting up Protection Reports
Domain-wide protection reports can be set up by domain users by selecting "Manage Settings" under the "Protection Report" heading. Per-mailbox protection reports can be set up by either domain or webinterface users by selecting "Manage recipients" under "Protection Report." These reports are emailed to the user on the schedule indicated and individual messages can be released via a link next to each listed message.
Using the IMAP System
To set up the IMAP system, a user may simply add an IMAP account to their favorite email client with the following details:
Three mailboxes will be visible:
"Caught" is a browseable folder that shows all quarantined messages. "Release" and "Spam" cannot be browsed. To release any caught messages that is not spam, a user can simply drag the message from "Caught" to "Release" and it will be delivered normally. To mark any uncaught message as spam, simply drag it from a usual mailbox to the "Spam" folder.
Either action will report the message as misclassified so that future messages may be filtered more correctly.
Extensive documentation for the SpamExperts appliance is available via the official Wiki. Please be aware that not all features listed are available on our filtering system. If you have any questions or need assistance, please contact support and we'll be happy to assist you.