Authentication
Understand sender identity, domain records, and authenticated submission requirements.
- Business email DNS setupPublish ownership TXT, MX, SPF, DKIM, and DMARC records without mixing their receiving and sending roles.
- Combine SPF recordsMerge the EmailDesk gateway with existing authorized senders in one valid SPF policy.
- SPF, DKIM, and DMARCUnderstand how the authentication layers work together and where their evidence ends.
- Email DNS propagationPlan MX, ownership TXT, SPF, DKIM, and DMARC changes around TTL and resolver caches.
- Sender authentication and DNSReview MX, sender verification, SPF, DKIM, DMARC, and the limits of authentication evidence.
- Authenticated SMTP submissionPrepare SMTP credentials, verified sender identities, gateway SPF, and secure client settings.