B2B Data Partners: spam filters

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COMMON METHODS OF SPAMMING

There are several criteria that an ISP considers while reporting spam against an email. Spamming proves to be economic for advertisers as it involves no operating costs. There are numerous spammers across the web and pose a serious threat to honest online advertisers. As a result Internet Service Providers (ISP) has formulated several measures to check the increasing rate of spamming. Only a trusted email campaign expert can help you avoid spamming like a pro.

The three common methods of email spamming used by the major ISPs and servers are:

Blacklisting – ISPs use this technique to identify which emails from a particular address should be blocked. Such lists would contain domains or IP addresses of known or expected spammers. If spam emails are sent from a domain continually, it might be blocked permanently. Also, constant spam complaints may cause domains to be on the blacklists. Sometimes, blacklists also contain email service providers who are into opt-in marketing.

Content Filters – This method is purely based on the content of the emails. Emails containing ‘spam’ terms in the body can get filtered by the ISP. Here, the entire domain or IP address is not blocked, but that particular email is. Though it might seem less serious, it can affect a major percentage of emails if continued unchecked.

Volume Filters - Most of the prominent ISPs trigger volume filters for emails that exceed the stipulated maximum rate. Industry based or categorized mailing invariably has large percentage of users with common major ISPs like Yahoo and MSN.

Sophisticated mail servers these days bounce email from mass mailing campaigns. Servers show up on your report as if the email didn't exist. This has lead to email service providers and email tools reporting a lot more bounces while the emails actually exist. This problem is also because of the type and the number of emails of emails you have sent to that server.

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Spam emails are considered as the unwanted pests

Anti-spam measures are taken by every email server to block out the delivery of any suspected or spam emails. Spam emails are considered as the unwanted pests. Companies and businesses go to great lengths to block out any spam mails from entering their mail servers. They use various mechanisms to identify these spam mails.

Any email that is suspected or identified as a spam mail is either immediately deleted or sent directly to the recipient’s junk folder instead of the Inbox. This way the recipient never sees the email.

Sometimes the imperfection of anti-spamming measures increases the problem for the email marketers. Here are the reasons:

• Sometimes a perfectly normal mail is labeled as a spam. This particular marketing email might be perfectly legitimate, but might get caught up in the anti-spam net.

• Each mail service applies a different kind of anti-spam mechanism to control spam. This becomes difficult for email marketers to take into account all the anti-spam mechanisms and send out legitimate marketing emails.

• You rarely get any feedback when your email gets spammed.

Fortunately there are ways you can ensure that your email gets delivered straight to your prospect’s mailbox.

B2Bdatapartners’ smart hard bounce management tool removes all bounce messages. It eases your burden of correcting the invalid addresses. Our proprietary hard bounce management tool can scrub your existing customer database by verifying it against our in-house master data file.

For more information:

Visit: http://www.b2bdatapartners.com/

Email: info@b2bdatapartners.com

Call: 800-382-4081

What causes your emails to bounce back?

Before you come up with a proper solution to your email deliverability problem, you need to know what causes them in the first place and how your deliverability is actually controlled. In reality, there are 7 primary filters through which your email needs to pass through. These filters are used by ISPs and corporate system administrators as they spam trap as many junk emails as possible hitting their server.

These 7 filters are:

1. Public Blacklists: There are a number of organizations like MAPS and Spam Cop that maintains lists of IP addresses that are linked to known or suspected spammers. These organizations make spammers public for ISPs and others to use them in screening out spam.

2. Private Blacklists: There are many ISPs and corporate system administrators that also maintain their own list of IPs for suspected spammers. There are different criteria based on which these spammers are suspected, such as,

• Complaints received from various subscribers

• Unknown user rates

• Server configuration issues

3. Fingerprinting/Spam Traps: Bright mail is considered to be the most commonly known fingerprinting/spam trap system. They filter known spam messages after they are matched against those that have generated previous complaints, or have delivered spam trap addresses. The “From” address is also considered.

4. Machine Learning-based Content Filters: As the name suggests, these filters are based on the words and phrases present in the email. This can be the content present in the body or the header.

5. Server Configuration: These filters instantly block the emails based on the server configurations.

6. Volume Cap: Some ISPs block your mails if the frequency or the number of connections is too high and exceed the threshold. Be careful so that you don’t surpass your limit.

7. Challenge Response: Some systems require a reply from your end to a challenge message. This usually proves you to be a real person. Such a filter basically confirms your email and domain and sends it to the “allowed sender” list.