Terms starting with D

• DDKIMA digital signature on your emails. The recipient’s mailbox checks it with a key stored in your domain’s DNS and knows the email really came from your domain.
• DDMARCA DNS entry that tells recipients’ mailboxes what to do with an email from your domain that fails the SPF or DKIM check: deliver it, move it to spam or reject it.
• DDNSThe list of settings for your domain. It tells the internet which server your website is on and where your email should go. Think of it as the internet’s address book.
• DDomainThe address of your website, for example yourcompany.com. You buy it for a year or longer from a company that sells domains (a registrar).
• DDomain registrarThe company where your domain was bought, for example GoDaddy, Namecheap, Cloudflare Registrar or Squarespace Domains. You change the domain settings in its dashboard.