چطور سرویس‌های ایمیل متوجه میشن ایمیل از سرور درستی بهشون رسیده؟

SPF, DKIM, and DMARC help authenticate email senders by verifying that the emails came from the domain that they claim to be from. These three authentication methods are important for preventing spam, phishing attacks, and other email security risks.


https://www.cloudflare.com/learning/email-security/dmarc-dkim-spf/