Email security terms

Multi-Purpose Internet Mail Extensions (MIME) is a fundamental email standard that allows users to send files (e.g., videos, photos, or audio recordings) over email.

A greylist is a list that contains temporarily rejected email addresses.

Graymail refers to promotional or subscription-based emails like newsletters, promotional offers, or announcements.

An email signature is a block of text at the end of an email message with information about the sender.

An email retention policy is a formal framework of guidelines and regulations that governs email storage, archival, and deletion.

Email harvesting involves gathering email addresses from various sources without permission.

An email gateway is a method used to protect an organization’s or individual’s email servers.

A drop address is a location where someone receives goods or packages anonymously, without being linked to the person who dropped them off.

DomainKeys Identified Mail, commonly known as DKIM, is an email authentication method to detect email spoofing.

Bounced emails are emails that failed to reach the recipient's inbox and return to you with a notification of their failure.

The Bayesian filter is a method that uses Bayesian statistics to predict the likelihood of events, like figuring out if an email is spam.

Anti-spam is any software, hardware, or technique to protect devices and accounts from spam — the mass sending of unsolicited messages.

An anti-phishing service is a specialized cybersecurity solution against phishing and certain other forms of social engineering attempts.