Spam Filtering

Take control of your inbox and lock unwanted spam and malicious content out.

Everyday spammers find new tricks to try to get into your email inbox. Most spam consists of unwanted advertising, but some can transmit viruses, adware or spyware onto your computer and cause problems. An effective anti spam program can solve many of your email problems.

NSK Inc. provides you with a domain-wide spam filtering service. This service uses a rule-based, e-mail spam identifying system and custom anti-spam software. With this type of filtering, we compare the message against a list of "rules" that identify words, phrases and/or aspects of message structure typical of e-mail spam. Once the message passes a particular threshold, it is considered spam and handled accordingly, helping you stop, eliminate and prevent spam. Here are some of the rules and methods used to improve e-mail security:

Header Analysis

We see past the number of tricks spammers use to mask their identities, fool you into thinking they have sent a valid e-mail, or have you believe that you must have subscribed.

Blacklists

We use many existing spam lists, such as mail-abuse.org and ordb.org.