What does this mean in practice?
SPF, DKIM and DMARC work together to reduce misuse of your domain name for email. For most website owners, the goal is a stable, secure and maintainable solution.
What should you consider?
Look at the full combination of technology, management, backups and support. A single specification never tells the whole story.
Practical next step
Check your current situation, make a backup first and implement changes step by step. This makes it easy to go back if something turns out differently than expected.
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