Remember DKIM
Full name: DomainKeys Identified Mail
Memory aid: Domain Keys Identify signed Mail.
A valid signature does not establish that the message is harmless.
Study area: Protocols & logical ports · Batch 7
Relevant study for: CompTIA A+ Core 1 220-1201 · CompTIA Network+ N10-009 · CompTIA Security+ SY0-701 · Cisco CCNA 200-301 · ISC2 CISSP 2024 outline
Practice with exam flashcards →Networking & Connectivity / Knowledge library
DKIM — DomainKeys Identified Mail
Signs selected email content and headers on behalf of a domain.
Why learn DKIM — DomainKeys Identified Mail?
Signs selected email content and headers on behalf of a domain.
Where it came from
A valid signature does not establish that the message is harmless.
- Memory aid (a learning cue, not the expansion): Domain Keys Identify signed Mail.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand DKIM: DomainKeys Identified Mail.
- Recall this memory aid: Domain Keys Identify signed Mail.
- Explain the practical use: Signs selected email content and headers on behalf of a domain.
- Explain this distinction: A valid signature does not establish that the message is harmless.
- Identify DKIM in a device specification, architecture diagram, or system inventory.
Documentation and sources
- IETF RFC 6376 (www.rfc-editor.org)