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Black Lists and White Lists Explainedby Karen FegartyOver 40% of all emails within your marketing campaign are not being delivered. You may not even be aware of this, as many ISPs will not send back a bounce message. In fact if you are sending messages to AOL customers, AOL is now blocking over 80% of the messages that come into their servers. One of the main reasons that this is occurring is that your IP or Domain
may be Black Listed. All major ISP's and many corporate email systems
now check against Black Lists and will refuse But what exactly is a Black List? DNS black lists are lists of domains and IP's that are known to originate
Spam. Many anti-spam software programs used by corporations and ISP's
use these lists to control Spam by Unfortunately there are many instances of false positives as there are
few checks and often little objectivity when listing a particular IP.
In order for a black list to know that a You may be listed maliciously through one complaint of a client, or that
of a competitor. Many Black Lists, as well, DNS blacklists are usually maintained by anti-spam organizations or by individuals. What are some of the most popular Black Lists that ISPs are using? Some of these include: MAPS - http://www.mail-abuse.com/ How do I know if I am on a Black List? Unfortunately, you really can't be 100% sure if you have been black listed.
You may be on someone's black list One way is to check your server log when sending your campaigns. You
will often see an email bounce notice Many of the major black lists also allow you to enter your IP into a form on their site. These checks will tell you whether you appear, or not, on their list. A useful tool, is the Black List Monitor. http://www.blacklistmonitor.com
- It automatically checks your IP against most of the major Black Lists
and tells you which ones you are listed on. It also gives you help in
getting removed. All your IPs are constantly monitored But what is a White List and how can this help? Many corporations and ISPs will create a white list. This is a list of
trusted IP addresses that they feel confident will not send spam to their
customers. If your IP is listed Other third-party email certification programs now exist. Bonded sender
www.bondedsender.com is one such agency. By joining Bonded Sender, senders
improve deliverability rates and differentiate their brand. Senders go
through a formal application process, adhere to email standards and post
a bond against potential complaints. Major ISPs such as Knowing if you are on a black list, getting removed if you are and getting
established on white lists is critical About the Author Catagories:
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