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Google terminated all Postini services on June 15, 2015. The filtering service has been combined into the G Suite (Google Apps) offering.

Webservio offers G Suite (Google Apps) service in addition to a wide selection of other email security options, including Mimecast, Proofpoint, and SpamWeeder Premium. We also offer a Postini Migration service for anyone still on the old Postini system.

Please contact us if you are unsure which solution would be best-suited to meet your company's requirements or if you have any other questions.


Attack blocking and connection protection

  • Connection Manager protects against email attacks, where an outbreak of harmful traffic originates from a single server, including Directory Harvest Attacks (DHA) and Denial-of-Service (DoS) attacks. Connection Manager also protects against significant spikes in spam or virus activity. Attacks are detected and blocked when the offending IP address attempts to connect with your email server. The source IP address is temporarily blocked, causing all messages received from that address to be bounced back to the sender.

Secure system with real-time filtering

  • For increased protection of your network, detection and filtering of suspicious mail occurs at our data center. This is a robust and secure cluster of servers that is wholly managed by our personnel. A pass-through spam detection engine works in-line with SMTP traffic to scan and sort messages coming in from the public Internet.

Optional directory server synchronization

  • This utility adds, deletes, and moves your users in the message security service to match the user directory on your LDAP server. Learn more about this option.

View more Postini features on the Next Page or see how Postini's features compare to those of its competitors.


Postini Enterprise Anti-Spam Filtering Features

In addition to all the features of Postini Inbound Anti-Spam Filtering, the Enterprise edition provides the following:

Spam, virus, and content filtering

  • Messages passing through the message security service are evaluated by several filters that can approve, block, or divert a message based on criteria you specify. These include all of the filters listed above plus the following:
    • Attachment manager filters - Messages can optionally be filtered based on the size or file type of any attachments.
    • Content manager filters - Messages can also be filtered based on key words or phrases in the message header or body.
    • Sender lists - You can allow or block messages based on the sender’s email address or domain.
    • Industry heuristics - With this optional feature, messages can be filtered specifically for users in the legal or financial industry (available only with some service packages).

Outbound filtering

  • You can set up filtering of your outbound mail (messages sent outside of your organization) to ensure secure mail connections, enforce messaging policies, and add virus protection.
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