Block or Quarantine e-mail from Social Networks

Question

Is there some option how can I block all e-mail messages from all knows Social Networks (facebook, google+, infoaxe, myspace...)
Or at least all auto sended e-mail like
Is [email protected] you friend...
or
[email protected] has indicated you're a frined. Accept?
and so on
I lower spam filter on Suspected Spam score 40 and it doesent catch them.
How to block this kind of SPAM messages?
Also how to block low volume SPAM messages from gmail that are selling things and self promotions?

Answer 1

Hello Juraj,
Have you tried to enable marketing mail?
Marketing Email is a mode of promoting products and services via Email. Even though marketing messages are not considered spam, your organization or end-users may not want to receive them. Marketing messages are messages that are NOT Spam, do NOT contain Email transactions and does NOT reflect communication between parties. Example of a Marketing message is an Airline promoting their products and services via an Email but an Airline confirmation email to a user is not a marketing message.
What is Marketing Detection and How it works?
In AsyncOS 7.0.x for Email and above Cisco IronPort has introduced a new feature Unwanted Marketing Message Detection. When enabled along with IronPort Anti-Spam or IronPort Intelligent Multi-Scan this feature can distinguish between Spam and Unwanted Marketing Messages. Like spam, you have the option to deliver, drop or bounce unwanted marketing messages. You also have the option to tag unwanted marketing messages by adding text to the message’s subject to identify it as marketing.
The Unwanted Marketing Message Detection feature in AsyncOS for Email can be configured via Per Recipient Policies for Anti-Spam. The Marketing Detection feature like Anti-Spam configuration allows you to drop, deliver or bounce after a message is detected as Marketing Email. For better detection and low False Positive rate it is highly recommended to use the "Tag and Deliver" action after a message is detected as Marketing Email by IronPort Anti-Spam or IronPort Intelligent Multi-Scan.
Cisco IronPort highly recommends customers to take advantage of this new Marketing Detection feature to detect Unwanted Marketing Email and enhance the end user Email experience.
How do you enable it?
    Go to Mail Policies -> Incoming Mail Policies
    Select the link under Anti-Spam for your Default mail policy
    Under 'Marketing Email Settings' select 'Yes' for 'Enable Marketing Email Scanning'
    Select the desired action under 'Apply This Action to Message'
    Submit your changes
    Repeat steps 2 to 5 for any other applicable mail policies.
    Commit your changes.