Blog · Tag
Authentication
Groundmail blog posts about Authentication: practical notes on sending transactional email in production.
5 min read
DMARC fail: what it means and how to fix it
DMARC fails when neither SPF nor DKIM passes for a domain that matches your From address. How to read the headers, find the failing sender and fix each cause.
Put your transactional email on solid ground.
Start free on our transactional pool. Move to dedicated IPs or a dedicated server when you need the isolation. Same API either way.