Wednesday, September 8, 2010

Online Email Server Test

The problem of SPAM is ever increasing. With the increase in SPAM, there is also an increase in the number of technologies for stopping SPAM.

Five years back, implementing an Email solution was as simple as choosing your Favorite MTA (Postfix, Qmail, Sendmail, Exchange Server or Lotus Domino) and configuring it on a Static IP.

Now if you do the same (and not do anything else), you are very likely to have problems delivering Emails to some body or the other. The Anti SPAM technology used by the recipient will decide that your email is SPAM and your email will be bounced, or worse, land up in Junk Email folder (and deleted by the recipient without checking)!

Since none of the Anti SPAM technologies are dominant, different technologies are used by different email servers. This means that your email could be considered as SPAM by different Email servers for completely different reasons. Sometimes your email could be considered as SPAM by the same Email server citing different reasons at different times.

If your organization is big enough, you can use the "All my other emails are going fine, so problem is on your side" logic and bully the other Email administrator to disable whatever Anti SPAM measure they are taking.

But if the recipient is a bigger organization, the reverse argument could be thrown at you ("We are receiving emails from everybody else, so you better fix your Email Server"). This is a nightmare situation for an Email administrator and this is when you need to learn all the Anti SPAM technologies.

Typically most of the Email delivery problems come about because of the following Anti SPAM technologies.


HELO Greeting Check
Reverse DNS Check
DNSBL (RBL)
SPF
Domain Keys
SPAMAssassin content checks
BATV (Bounce Address Tag Validation)
Greylisting
URIBL
There are other not so widely used technologies that may come into play in a few cases, and if you run into those, Good luck!

Previously, one had to do individual tests for the above and see if any of the above technologies cause a problem. An Online Email Server Test solves this problem by automating the whole process. All you need to do is to send an Email address to a test Email address.

The recipient Email Server analyzes the Email, Email server and its properties and delivers a report giving details of your Email server compliance with respect to all the above technologies.

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