What is the real definition of SPAM?  Information on SBL, the 'Spamhaus Block List':  Click Here

The Definition of Spam according to Spamhaus

The word "Spam" as applied to E-Mail means Unsolicited Bulk E-Mail, otherwise known as "UBE."

Unsolicited means that the Recipient has not granted verifiable permission for the message to be sent. Bulk means that the message is sent as part of a larger collection of messages, all having substantively identical content.

A message is Spam only if it is both Unsolicited and Bulk.

       Unsolicited E-Mail is normal e-mail.
       (Examples: first contact enquiries, job enquiries, and sales enquiries)

       Bulk E-Mail is normal e-mail.
       (Examples: subscriber newsletters, customer communications, discussion lists)

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Technical Definition of Spam

An electronic message is "spam" IF:

        1. The recipient's personal identity and context are irrelevant because the message is equally applicable to many other potential recipients.      


       2. The recipient has not verifiably granted deliberate, explicit, and still-revocable permission for it to be sent.

Spam is an issue about consent, not content. Whether the UBE message is an advert, a scam, porn, a begging letter or an offer of a free lunch, the content is irrelevant - if the message was sent unsolicited and in bulk then the message is spam.

Spam is not a sub-set of UBE, it is not "UBE that is also a scam or that doesn't contain an unsubscribe link", all e-mail sent unsolicited and in bulk is Spam.

This distinction is important because legislators spend inordinate amounts of time attempting to regulate the content of spam messages, and in doing so come up against free speech issues, without realizing that the spam issue is solely about the delivery method.

Important facts relating to this definition:

1. The sending of Unsolicited Bulk E-Mail ("UBE") is banned by the vast majority of Internet Service Providers worldwide.

       2. Spamhaus' anti-spam blacklist, used by more than 260 million Internet Users to reject e-mails identified as spam, is based on the internationally-accepted definition of Spam as "Unsolicited Bulk E-Mail." Therefore anyone sending UBE on the Internet, whether the content is commercial or not, illegal or not, needs to be fully aware that (1) they will lose their Internet access if they send UBE, (2) they will be placed on the Spamhaus Block List (SBL) if they send UBE.

Various jurisdictions have implemented legislation to control what they call "spam". One particular example is US S.877 (CANSPAM 2004). Each law addresses "spam" in different ways, and as a consequence, often has different definitions of what they cover, whether they call it "spam" or not. Spamhaus uses the industry standard "unsolicited bulk e-mail" definition which underlines "it's not about content, it's about consent". As such, arguments as to whether UBE messages are covered under CANSPAM or are compliant with CANSPAM, are entirely irrelevant.

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