Everyone has encountered spam at some point or the other in their lifetimes. It is a reality of using email today that you will end up seeing a folder in your mailbox dedicated to spam, and your computer will keep adding mails there and deleting it once a month. Most of us don’t even bother with the process. The reason is because of software like spam filters. This is software that learns from user behavior as each mail is marked as spam for the occurrence of words and phrases that could possibly indicate a pattern. This pattern is then calculated as a probability and then the final result is a probability score for email that could possibly be spam mail. What this means is that you need to be more ingenious when writing material for bulk email marketing campaigns. There are two types of filters Bayesian and Markovian filtering based software. One checks for single words and the other for entire phrases. This makes these two advanced filters almost flawless in detecting spam.

The first step in writing mails to ensure that they are not dubious enough to invite the attention of spam filters is to use sensible subject lines. Do not use subject lines with brand names of your product, prices, discounts, and free offers. Additionally, the type of product that you are selling should also not be mentioned as this is a surefire way to get detected. You should instead have subject lines that sound like you are offering information in a newsreel type of fashion

The next step is to write your email properly. It is sometimes inevitable that you have to mention your product brand name at some point in the mail. Do this but do this sparingly. Using your brand name more than twice might invite the attention of a filter.

When you are mentioning facts of your product in your email, you must never sound like you are trying to hard sell your product. This is irritating to the user and, at some point of time; the user might just mark the mail as spam, blacklisting you forever. You should rather do away with all types of sales spiel altogether and follow a more subtle newsletter approach. Nobody will mark an informative mail as spam, at least not a majority of people.

The last step is to use more imagery than text and embed a majority of the text in the image, as this cannot be read by spam filters. This is one tactic that is starting to lose its power so if you exercise this while it still works, remember that the prime objective is to send more users back to your site with a “read more…” link. The sad part of the matter is that all of these methods are not completely fool proof and you might still end up being marked as a spammer. However, even one sale can offset the costs of this significantly.