Blocked Email and Spam Blacklist Horrors

Spam blacklists, also called blocklists, are actually a network of spam tracking sites that create databases of known spammers. These services list IP addresses and IP ranges known to send unsolicited bulk email, or UBE. One problem of blacklists is the potential for cutting off legitimate users, especially in the case of people who fall into a range of blocked IP addresses shared with a real spammer.

Visit this authority site to test for a blocked IP at mail-abuse.com. Having an IP listed in a database may not mean your email will always be blocked, yet if your outgoing service gets a complaint, it could cause short-term or extended grief. Here's why.

Being in one of the spam databases is a red flag and the decision to block a particular email is not normally made by the outgoing email server, but by the recipient's incoming email service provider. The majority of them filter incoming email for spam. Most internet service providers subscribe to these databases to instantly check email senders to help protect their users and reputation.

The database is only one factor in identifying spam. Normally incoming filtering systems would screen the IP by accessing blacklist databases, and then scanning the content within the message body to determine if it should be allowed, marked suspect, or blocked. As stated earlier, if your IP is within a numerical range of IP addresses assigned to your ISP, you could get caught up and added to a blacklist if a real spammer is within that range.

Once you encounter bounced email coming back from known contacts with any negative reference to spam or blacklists, take action. Don't wait. My advice for correcting the situation is to begin by contacting your ISP, Internet Service Provider, give them the details, and let the experts resolve the issues.



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