Anti Spam Filtering using Gmail? Why?

anti spam filtering

anti spam filtering

I have been using Gmail, Yahoo! Mail, and Hotmail for very long time. My general feeling is that the super-powerful anti spam filtering capability of Gmail is unprecedented. It can eliminate almost 98% of spam emails while at the same time maintaining an almost zero error rate of filtering legitimate emails. It definitely outperforms the other two free email systems.

I am always curious how it achieves this phenomenal success rate, but I find no clue at all. Having had no success in finding its algorithm, I turn to a very practical question: How we can make use of its powerful anti spam filtering capability to handle our daily corporate email reception task?

The first solution is to use Gmail for receiving emails from your contacts. That sounds easy and straightforward, but the downside is that you have to give up the corporate email address that signifies your corporate identity. How can we preserve that?

Here is a quick solution you can try. Since Gmail allows email received to be forwarded to another email address, you can follow these steps to set this up.

First, you’ll need to create the following three email addresses for each staff member of your company:

  1. The primary corporate e-mail, which is shared with contacts. Say, for John Doe of your company XYZ Inc., you can john.doe@xyz.com.
  2. A second corporate e-mail, called john.doe_filtered@xyz.com. (You’ll see the use of this second e-mail in a few minutes.)
  3. A Gmail account, with an address similar to: john.doe-xyz@gmail.com

Next, configure the first, primary email address to forward email to the Gmail address.

In the Gmail account settings for the Gmail email address, select the option “Forwarding and POP/IMAP” as shown below:

You will see the following screen:

anti spam filtering setup - Step 2

Set this to forward to the second corporate email address of your staff (i.e., the john.doe_filtered@xyz.com address, as shown in the above screen capture).

Now John Doe can configure his email client to read spam filtered email from the second email account. Those emails are originally addressed to his primary email address, filtered by Gmail, then automatically forwarded to his second corporate email account.

What John needs to remember is to make sure the email address john-doe_filtered@xyz.com is hidden from his contacts. He only uses it as a tool to receive the filtered emails.

If you really want to own the Gmail account as a private labeling service to your company (and that entitles you to own the big storage space of Gmail for each of your private corporate email account and also the spam filtering service), you can register for a private label email program through Google Apps here:
http://www.google.com/a/help/intl/en/index.html

However, this involves pointing all your corporate emails to Google’s Server for storage and processing. I am not so sure if this is a good idea for your company, although this service is basically free with an option to pay a small fee to receive technical support service.