Phishing and Spam

How our email server eliminates Phishing and Spam

The best spam prevention techniques on the market today have various features to only accept mail from someone confirmed to be who they say they are, combined with trainable message content based filtering.

The 1USA.Com mail servers
- block virus infected mail
- prevent abuse of your mail server by spammers
- offer advanced features to identify undesirable spam email

To prevent Phishing, people should use a Mail Server that can reject or isolate the obvious fakes, while also requiring email senders to confirm their identity the first time an email is sent to you.
When you receive the first email from someone, your ISP's mail server should show you the message's headers:
- From address
- MailFrom address
- Return-Path address
- Reply-To address
- Server Name that sent the email to you
- The IP address of the server
- The Country that the IP address is located in.

Only 1USA's mail server provides these details - on your Spam Reports.
Change your Email Hosting Provider to 1USA and get protected.

Filter Module Summaries:

News and Information

SPF and Domain Keys Sender Verification - Did you ever receive an email from a bank - but the email really originated from a foreign country?
Our Mail Servers can verify that the sender domain/ip address is genuine or not. This step doesn't stop all spam but it can certainly stop a large bulk of spam and phishing by identifying the obvious forgeries.
- Yahoo emails are not supposed to originate from a server or computer with a different name.
- Bank emails are not supposed to originate from a server or computer with a different name.

The system verifies that the message's headers match. If they do not match, the server will either
- reject the email as fake
- send back a link to the sender to click on.

Here is an example of SPF Failures from a Mail Server Log.

If you are interested, click here to see more detail.

Friends Sender Verification

Friends Sender Verification - Each user has a list of friends... which are messages from known friends. Emails from your Friends are whitelisted automatically and delivered directly to your in-box. The list of friends is automatically updated by the server.

Click on the above example to see it full size.
Our system shows you
- The From-Address used to send the email
- The Reply-To address in the email (if different from the From-Address)
- The Return-Path address in the email (if different from the From-Address)
- Whom the message was sent to. Whether it was sent to you or to a group.
- The name of the Mail Server used to send the email. If you click on the Sending Server, it will link to the Domain Registration for that domain name and display its IP address. This is handy when verifying if an email "from" Chase Bank really originates "from" Chase Bank.

Automatically adjusting spam detection

Automatically adjusting spam detection - The filter rules are tuned automatically to match the types of spam and nonspam that are common across multiple email accounts.

Bayesian like content filter

Bayesian like content filter - Each day the database is used to re-tune the Bayesian like filter which works by statistically anlyzing the words and order of words. This filter does well with text content spam (phishing, scams etc)

Phrase and Key Word Filter

Phrase and Key Word Filter - This filter is regularly updated to target phrases common to spam. This filter is also good at catching common scams and any common text based spam messages.

Web page probing

Web page probing - This filter carefully examines messages to find URL links which are 'unknown' to it, it then probes the web pages in question to see if they contain commonly spammed products (drugs etc)
Wouldn't it BE NICE to know ahead of time if an email contains a link to an infected website or is a spam that sells drugs?
If you're a 1USA customer, you are protected.

Feature rule file

Feature rule file - This rule file identifies many different features of email (like the word VIAGRA in the subject), these features are then fed into the self tuning feature processing module...

Self tuning feature processing

Self tuning feature processing - This module takes all the information from the modules above and combines the results based on analysis of the sample database to figure out the probability of a message being spam based on all the features it exhibits. Each day the rules are recreated based on your local spam samples, and combinational rules are created automatically.

Results

Each Email Account can choose to activate any of these features... or just some of them.

- Business accounts, like Sales@ or Support@ are normally set loose... but still need to block infected links in emails or scripts in file attachments (that might turn off your Firewall and invite a virus in).

- On the other end of the scale, Suzie in the Accounting Dept should only receive emails from other company employees and certain other people. Our servers have the ability to allow each email account to be loose or locked-down.

This is some pretty neat programming, huh.
It's all done with the goal of having NO SPAMS in your Mailbox.

1USA.COM

National ISP Service