E-Mail

Question 1

DKIM

Answer 1

Domain Keys Identified Mail
Provides a means for gateway-based cryptographic signing of outgoing messages
Allows you to embed verification data in an email header and for recipients to verify the integrity of messages

Question 1

SPF

Answer 1

Sender Policy Framework
Enables recipients to verify sender’s IP addresses by looking up DNS records that list authorized mail gateways for a particular domain

Question 2

DMARC

Answer 2

Domain-based Message Authentication, Reporting & Conformance
Designed to block spoofed messages and provide visibility and reports into who is sending email on behalf of your domain