Wiki

A whitelist is a security mechanism used to allow access to resources from specific trusted sources, widely applied in email filtering and network security, enhancing security and email deliverability.

An email signature is information appended to the end of an email, used to display the sender’s identity, contact information, and brand image, serving to enhance professional image, facilitate communication, and promote brand awareness.

Auto-forwarding is an email system function that automatically sends received emails to designated mailboxes, facilitating information sharing and management, but requiring safeguards against security risks such as data leakage.

BIMI enhances email credibility by displaying brand logos, reduces phishing fraud, combines with SPF, DKIM, DMARC and other technologies to verify sender identity, increases user trust and suppresses forged emails.

Cloud Email Service (SaaS) is an email solution delivered over the internet, requiring no local deployment, offering advantages in efficiency, flexibility, and security, widely used in enterprise communications, marketing, and customer support.

Edge Transport Server is a key component handling email flow at network boundaries, responsible for security filtering, routing, and transmission, enhancing email system security and efficiency, widely used in enterprise email systems.

Email archiving is a technical means for long-term, secure storage of emails and efficient management, meeting compliance, forensic, and information protection requirements.

Email gateway is the first line of defense for enterprise email systems, with functions including anti-spam, anti-virus, content review, and compliance auditing, ensuring secure and stable email communication.

Email quota is a storage limit set by email service providers to manage resources and ensure service stability. Users need to regularly clean up emails or upgrade accounts to avoid exceeding limits that affect sending/receiving emails and system performance.

Email relay is a critical component in electronic mail transmission, enabling server-to-server email forwarding through the SMTP protocol. Modern systems implement restricted relaying to enhance security, with widespread applications in enterprises, cloud services, and IoT. Future developments are moving toward intelligent and highly secure systems.