: Adds a digital signature to your emails, which receivers verify using a public key published in your DNS.
: A TXT record that lists the IP addresses authorized to send email for your domain.
Before sending anything, you must verify your domain ownership using . This proves to receiving mail servers (like Gmail or Outlook) that you are authorized to send from your domain.
Managing a list of stored in a .txt file usually involves transitioning from a simple text list to a functional marketing or outreach system.
: Uses a TXT record to tell servers how to handle emails that fail SPF or DKIM checks (e.g., "reject" or "quarantine" them). 2. Bulk Management and Automation
