SPF guides
Sender Policy Framework — a DNS record that lists which servers are allowed to send mail for a domain. See the glossary entry →
6 guides touch on spf.
- Adding a new domain to Microsoft 365 without email downtime
How to add an email domain to Microsoft 365 without downtime: verification, accepted-domain type, SPF, DKIM, DMARC before MX, and the mail-flow traps.
- BIMI and brand indicators in email
BIMI shows your brand logo next to email from your domain in supported clients. Here's the setup and the prerequisites.
- DMARC rollout from p=none to p=reject
How to roll out DMARC enforcement progressively — the journey from monitoring to enforced anti-spoofing.
- Exchange Online mail flow and connectors
How mail moves into and out of Exchange Online — connectors, transport rules, and hybrid routing.
- Exchange Online Protection transport pipeline
How email flows through EOP — connection filtering, content filtering, transport rules, and the deliverability checks.
- Microsoft 365 domains and DNS setup
The DNS records every Microsoft 365 tenant needs — and what each one does.