Effectively stopping spam over the long-term requires much more than blocking individual IP addresses and creating rules based on keywords that spammers typically use. The increasing sophistication of spam tools coupled with the increasing number of spammers in the wild has created a hyper-evolution in the variety and volume of spam. The old ways of blocking the bad guys just don’t work anymore.

Examining spam and spam-blocking technology can illuminate how this evolution is taking place and what can be done to combat spam and reclaim e-mail as the efficient, effective communication tool it was intended to be.

One method used to combat spam is whitelisting. Whitelists are databases of trusted email sources. The list may contain specific email addresses, IP addresses or trusted domains. Emails received from a whitelisted source are allowed to pass through the system to the user’s email box. The list is built when users and email administrators manually add trusted sources to the whitelist. Once built, the catch-rate for spam can be close to 100%, however, whitelists produce an inordinate number of false positives.



It is virtually impossible to produce an exhaustive list of all possible legitimate email senders because legitimate email can come from any number of sources. To get around this difficulty, some organizations have instituted a challenge-response methodology. When an unknown sender sends an email to a user’s account, the system automatically sends a challenge back to the sender. Some challenge-response systems require the sender to read and decipher an image containing letters and numbers. The image is designed to be unreadable by a machine, but easily recognizable by a human. Spammers would not spend the time required to go through a large number of challenge-response emails, so they drop the address and move on to those users who don’t use such a system.

Whitelists are only partially successful and impractical for many users. For example, problems can arise when users register for online newsletters, order products online or register for online services. If the user does not remember to add the new email source to their whitelist, or if the domain or IP address is entered incorrectly, the communication will fail. Additionally, whitelists impose barriers to legitimate email communication and are viewed by some as just plain rude.

Whitelists are not widely used by email users and administrators as a primary tool to fight spam because of the high number of false positives, and the difficulties in creating a comprehensive list of email sources. Because whitelists are not widely used, spammers typically do not develop countermeasures. As with other spam fighting techniques, whitelists are most effective when used in conjunction with other anti-spam tools.

The unsolicited junk or bulk email that you receive is known as Spam. Spam is a very serious problem the people have to deal with daily. Sometimes the junk emails exceed the regular email messages that we receive in our email account. Spam filter can be a solution for you to get freedom from Spam mails. There are different types of software to keep out the Spam emails from your inbox. Spam filters can monitor the emails that come in your inbox and prevent any Spam mail from entering in to your inbox.


The Spam email that you receive is due to the inappropriate usage of mailing list. The mailing list consists of email ids of different people and all of them can be flooded with bulk or junk emails. Many companies send out the Spam email massages to a large number of people who do not ask for such massages. Spamming is considered to be very bad netiquette as it amounts in violating a person’s privacy. Netiquette demand that no email id can be used without the user’s permission.

Many Spam filters are designed to help people who are constantly bombarded with junk or bulk mails. Spam filters make use of filtering technology to filter the contents of the incoming emails. Spam filters can effectively help a person by sorting out these types of incoming emails.

Different types of Spam filters can be helpful for controlling spam. Content based Spam filter is one type that can be used by you. The filter scans the content of the email, and searches for tell tale signs for Spam in the message. Content based Spam filters have however not been very effective in controlling the bulk or the junk messages. The main reason for this being that the spammers had devised ways and means by which they can communicate their message despite the presence of such filters.

Spam filters that are prepared these days are designed to give advanced protection against unsolicited emails and spammers. Bayesian filter technology is another effective way of controlling these mails. Bayesian technology is not like other filtering methods that search for Spam identifying words in the header and the subject line. The Bayesian filter uses the entire perspective of an email when it looks for characters or words for identifying a Spam. Another feature of Bayesian Spam filter is that the more it analyzes the incoming mails, the more it learns to identify Spam mails.

Spam mails can sometimes bombard you in such a manner that you may end up receiving more Spam than the regular emails. Most email service providers have Spam filter software enabled in their sites. All you need to do is select the options of setting the Spam filter for your emails according to your liking. You can mark the sites from which you want to receive or not receive mails in your inbox. Setting the options for blocking the bulk or the junk mails is entirely your prerogative.

eBay Stores come with a very powerful feature: store newsletters. When buyers add your store to their favourites, you can offer them the chance to join your mailing list. You can then send highly targeted emails to people who you know were at least interested enough in your products to add the store to their favourites.


How Do I Send Them?

First, you need to get some people to sign up for your newsletter – this will happen with time, as people buy from you and browse your store.

Once you’ve got a few subscribers, it’s worth sending out a newsletter. To send store newsletters, go to My eBay, click ‘Manage My Store’, and then click ‘Email Marketing’. Once you’ve done that, click the ‘Create Email’ button, and you’re away.

All you need to do now is write an email subject and a message, choose any items you want to include in the email, and specify who you want to receive it. The subject and message can be something relatively generic, like ‘here are my latest deals’ – it’s the targeting that’s important, and eBay’s is powerful. You can choose to only send an email to people who’ve bought from you in the past, or only to people who’ve opened your email before.

It is important to note, though, that you can only send one email per week to a mailing list.

The Ups and Downs.

The downside of store newsletters is this: they’re expensive. A basic, $15.95 per month store only comes with 100 emails, while $49.95 comes with 1000. Even the $499.95 anchor store only comes with 4000! Extra emails for all stores cost 1 cent each. That’s $1 per hundred extra emails. If your mailing list has a significant number of people on it, then that’ll get really expensive, really fast.

Surprisingly, though, it can often be worth it, despite the cost. It’s very rare to send out a newsletter to a mailing list of a hundred and not get at least one sale, and you’ll often get three or four, even to small lists.

Measure Your Success.

Each time you send an email, eBay produces a report telling you how well that email did. You can view these reports on the ‘Email Marketing’ page by clicking the subject line of an email you sent.

This report will show how many people received your email, how many opened it, the number of clicks it generated on your items and your store, and the number of bids and Buy it Now purchases that resulted from the email. Some of the numbers might be too low, though, as many people use email software that displays email in plain text format and so stops eBay from collecting statistics. Also, you will notice that you’ll have more success if you send out emails regularly, as people will start to expect them, and react in a more open way – don’t expect the Earth from your first email.

By now, you’re probably getting pretty good at selling on eBay – isn’t it nice to have all those satisfied customers? Not to mention the money… However well you’re doing, though, there’s always room for improvement. The next email will give you ten tips for being an even better seller.