What is email spoofing? A Clear Guide

Spoofing forges the From address to impersonate a domain. SPF, DKIM and DMARC exist to stop it and protect your brand.

Why it matters

Knowing email spoofing helps you land in the inbox. See the deliverability checklist.

How Rainmail helps

Rainmail sends from your own domain on a dedicated, isolated IP with SPF, DKIM, DMARC, reverse-DNS and managed warm-up handled for you, plus a REST API and an AI watching deliverability — and it welcomes senders SES, SendGrid and Mailchimp reject, from $8. Run the free checker or see plans.