false 29836 econsultancy_xml Probably one of the most well known open source (free) anti spam applications is Spam Assassin <br /><br />http://spamassassin.apache.org/<br /><br />This program is widely used to power many spam firewalls, so if you want to use a single source for your content checking, this would be a popular choice. The main issue with these types of content filters, is that they tend to all weight different words and phrases with a different “SPAM” score. The other issue with this type of filtering is that it is highly configurable, meaning that one person’s installation might be different from another’s.<br /><br />To counter this, the new buzz word in the spam filtering arena is “Reputation”. Reputation is an amalgamation of a number of metrics that include;<br /><br />•    Volume of complaints<br /><br />•    Volume of Hard bounces <br /><br />•    Volume of email send<br /><br />•    History of IP<br /><br />•    Real Time Black List inclusion<br /><br />•    Mailing consistency<br /> <br />Leaders in this type of monitoring, Return Path  http://www.returnpath.net/   have recently released a study that in 77% of the time, reputation has the greatest impact in delivery to the inbox, and content only 17%, and if you consider that they are delivery partners for Microsoft, and run the only white list that Microsoft domains use, they are defiantly worth listening to.<br />This has been borne out by our experience with sending out 45 + million emails per month, and has demonstrated that reputation really does make the most difference when you are trying to optimise delivery. <br /><br />Delivery into the inbox is one of the greatest challenges that faces online marketing, and based on the latest DMA metrics of 68% delivery for acquisition and 80% for retention emails, many are not winning the battle.<br /><br />My advice would be to work with one of the specialist ESP’s or delivery consultants, even if you use your own in-house delivery mechanisms, this could pay dividends even in the short term.<br /><br />But if this is not what you want for now, the Return Path website is full of advice.          <FormattedContent xmlns="http://www.e-consultancy.com/schema/formattedContent/">Probably one of the most well known open source (free) anti spam applications is Spam Assassin <LineBreak /><LineBreak />http://spamassassin.apache.org/<LineBreak /><LineBreak />This program is widely used to power many spam firewalls, so if you want to use a single source for your content checking, this would be a popular choice. The main issue with these types of content filters, is that they tend to all weight different words and phrases with a different “SPAM” score. The other issue with this type of filtering is that it is highly configurable, meaning that one person’s installation might be different from another’s.<LineBreak /><LineBreak />To counter this, the new buzz word in the spam filtering arena is “Reputation”. Reputation is an amalgamation of a number of metrics that include;<LineBreak /><LineBreak />•    Volume of complaints<LineBreak /><LineBreak />•    Volume of Hard bounces <LineBreak /><LineBreak />•    Volume of email send<LineBreak /><LineBreak />•    History of IP<LineBreak /><LineBreak />•    Real Time Black List inclusion<LineBreak /><LineBreak />•    Mailing consistency<LineBreak /> <LineBreak />Leaders in this type of monitoring, Return Path  http://www.returnpath.net/   have recently released a study that in 77% of the time, reputation has the greatest impact in delivery to the inbox, and content only 17%, and if you consider that they are delivery partners for Microsoft, and run the only white list that Microsoft domains use, they are defiantly worth listening to.<LineBreak />This has been borne out by our experience with sending out 45 + million emails per month, and has demonstrated that reputation really does make the most difference when you are trying to optimise delivery. <LineBreak /><LineBreak />Delivery into the inbox is one of the greatest challenges that faces online marketing, and based on the latest DMA metrics of 68% delivery for acquisition and 80% for retention emails, many are not winning the battle.<LineBreak /><LineBreak />My advice would be to work with one of the specialist ESP’s or delivery consultants, even if you use your own in-house delivery mechanisms, this could pay dividends even in the short term.<LineBreak /><LineBreak />But if this is not what you want for now, the Return Path website is full of advice.         </FormattedContent> 2008-02-08T11:10:17+00:00 true 2651 8563 109540 2008-02-08T11:10:17+00:00