Posts Tagged ‘blacklist’

What Is SPAM And How Not To Be A SPAMMER

Email spam, also known as junk email or unsolicited bulk email (UBE), is a subset of electronic spam involving nearly identical messages sent to numerous recipients by email.


What Are Email Blacklists

ATTOG Technologies spam stops here image

A DNS-based Blackhole List (DNSBL) or Real-time Blackhole List (RBL) is an effort to stop email spamming. It is a “blacklist” of locations on the Internet reputed to send email spam.


What Is Email Spoofing

ATTOG Technologies What is Spoofing image

Email spoofing is the creation of email messages with a forged sender address. It is easy to do because the core protocols do not have any mechanism for authentication. Spam and phishing emails typically use such spoofing to mislead the recipient about the origin of the message.


Understanding Domain-based Message Authentication, Reporting and Conformance (DMARC)

ATTOG Technologies dmarc email auth flowchart

Domain-based Message Authentication, Reporting and Conformance (DMARC) is an email validation system designed to detect and prevent email spoofing.


Understanding DomainKeys Identified Mail (DKIM)

ATTOG Technologies DomainKeys Identified Mail (DKIM) diagram

DomainKeys Identified Mail (DKIM) is an email authentication method designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain is authorized by that domain’s administrators.


Understanding Sender Policy Framework (SPF)

ATTOG Technologies SPF diagram image

Sender Policy Framework (SPF) is a simple email-validation system designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain comes from a host authorized by that domain’s administrators.


Phishing

Phishing is a scam where Internet fraudsters send spam or pop-up messages to lure unsuspecting victims into providing passphrases, personal, and/or financial information.


What Are Phishing Scams And How Can I Avoid Them?

Phishing scams are crude social engineering tools designed to induce panic in the reader. These scams attempt to trick recipients into responding or clicking immediately, by claiming they will lose something.