In order to understand the importance of spam blacklist testing, one should first know what spam blacklists are. In essence, a spam blacklist, also known as DNS-based black list or DNSBL is a list of IP addresses associated with spamming. There are hundreds of DNS-based spam black lists and each operates under its own criteria for listing and delisting IP addresses.
Most email clients as well as anti-spam tools use those lists to block incoming spam email messages.
While the benefits of spam black lists are evident – they are an important part in email spam prevention, web marketers often criticize them. The reasons are numerous but one of the most serious ones is that those lists rarely have clear criteria for listing and delisting addresses. That brings us to the question why is spam blacklist testing important.
If you are a web marketer or a web site owner who runs email marketing campaigns, the last thing you would want is to see your IP address blacklisted. That basically means that the majority of your recipients will not receive your promotional emails or newsletters as they will be flagged as spam. Since delisting from a DNSBL is rather complicated, you wouldn’t want to get listed at the first place.
However, there is no guarantee that your IP address will never be blacklisted. Performing spam blacklist testing on a regular basis is important because it will allow you to find out whether there is an issue with your address and if your customers are actually receiving the emails you are sending.
Spam blacklist testing is very important in one other occasion – when you decide on a hosting provider. In fact, this is one of the first things you need to check prior to signing up with any hosting provider. It is even more important if you plan to use permission based email marketing. If the mail server of your hosting provider is already in some DNS-based blacklists, you should definitely look for another company.
How to perform spam blacklist testing? The best way to do that is to use a reputable online tool that will automatically check your domain name and/or the IP of your hosting provider against numerous DNSBLs.
Here are three that you may want to check out…email spam prevention, permission based email marketing, spam blacklist testing, email spam blocking