What is an Email Domain?

An email domain is the part after @ in an address. In alex@example.com, the domain is example.com.

Use a domain you control and that represents your business truthfully. Keep outreach separate from the domain you rely on for essential company communication. Do not imitate another business or use confusing brand names.

You can buy an available domain through sending.ac or connect one registered elsewhere. Follow the nameserver values shown for that domain in your dashboard.

Changing nameservers affects the whole domain, including an existing website or other email. Contact support before connecting a domain already used for another live service.

Domains registered with Cloudflare have a nameserver restriction that prevents the standard connection process; ask support about your options before buying a domain there for this setup.

The right number of mailboxes depends on your sending.ac configuration. Do not copy a mailbox-to-domain ratio from a guide written for another provider.