A blacklist (or black list) is a list or register of entities or people, for one reason or another, are being denied a particular privilege, service, mobility, access or recognition. As a verb, to blacklist can mean to deny someone work in a particular field, or to ostracize a person from a certain social circle.

A blacklist is a publicly available list or a database which is used by the receiver servers commonly to identify the spammer. The receiver server obtains the information to check the reputation score of a particular IP address. Based upon this information the receiver decides to accept or to reject the email messages. There are many more reputable or branded blacklist services which are commonly used by the giant ISPs. Hence in order to avoid all such issues keep your email list clean and he...

An email blacklist or DNS based black hole list is a database which uses a list of criteria to determine whether the IP address sends legitimate emails or spam. Many email servers or ISPs refer such blacklists to get hold of spammers. Since the blacklists have a list of IP address which are found to be spammers or spam friendly servers. If your IP address is being listed in the black list then emails through that IP address will be considered as spam and would not allow your emails to reach sub...

The acceptable spam score or spam rate is 0.1%, anything above than this or higher will get your account or IP address blocked to prevent sending even more of unwanted email or stuff. A blacklist is a database which helps to determine the legitimacy of an email address or IP address. These are run by reputed or independent organisations to defend email spamming, phishing and fraudulent activities of illegitimate email senders or spammers. These organisations have intimate connections with gian...