Spam Filter Mayhem - Know Your Boundaries

The problem with tricking the spam filters has been a growing problem since the beginning of spam blocking software. There are a few things you can do to bypass the filters, however, it all boils down to whether your domain is intercepted by a whitelist or blacklist. Most web hosts have spam filtering capabilities, which may dump your newsletters in the junk box to safeguard their system.

Of course, bounced emails are also the case why users can’t receive email, or the sender clogs up the queue with undeliverable email messages.

I’m going to give two examples; bounces and headlines. Writing email subject lines is just like writing a headline for any advertisement. But with email, it is different. Whereas the utilization of spam blocking, there’s wording that must be broken to avoid being blocked.

a) work at home = wo.rk at ho.me
b) work from home = wo.rk fro.m ho.me
c) free = f.r.e.e.
d) marketing = mar.keting

The email is scored from 1 – 5.0 and when checking for spam, the lower the number, the better chance of getting through spam filters. Using its rule base, it uses a wide range of heuristic tests on mail headers and body text to identify spam also known as unsolicited commercial email.

Curse of the Hard Bounce

A bounced email is just an email which is generated if the mail box you’re trying to reach isn’t available. There are quite a few reasons why a mail box might be undeliverable:

a) Mail box is full – meaning over quota.

b) Server not found – might be from DNS problems.

c) Server under too much load at time of delivery attempt.

d) Server has black listed your server, usually because they think you are spamming them.

Reason #D would be possibly false, since you don’t tolerate spam, the majority of ISPs will black list a server from somebody reporting only one or two complaints.

This is completely typical, but unprofessional on their part, because their system doesn’t verify if you are sending legitimate email messages or not. If your email is bounced back because your servers are black listed, or black holed, then you may want to consider contacting these providers to explain your position.

The concept of email hosts must be explained in order to get off the black listing. It doesn’t matter what size mailbox you have, servers that place undeliverable email back in its mail queue will attempt an extended length of time to wait before trying to mail again. This eventually will send out the email, but email found to be compromised will be deleted after a certain time.

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