Skip to content
Paycux
Custom Domains

Email Domain

How Email Domain works in Paycux, what it is for, and the smallest setup that gets it running.

Configuring a domain

Verify a domain before you let it drive access. Paycux issues a TXT record; once it resolves, the organization owns that domain and users arriving with a matching email address are routed to its connection.

Verification is re-checked periodically. If the record is removed, the domain returns to unverified and routing stops — it does not silently keep working.

Navigate to Domains configuration

Navigate to Domains configuration is configured per environment in the dashboard, so staging and production can differ while your application code stays identical.

Changes take effect on the next request. There is no deploy step and no cache to clear.

Add an email domain

Add an email domain applies specifically to Email Domain. It behaves the same in both environments, and the values it depends on are visible in the dashboard for the environment you have selected.

If the behaviour you see does not match this description, check which environment your API key belongs to before anything else — a staging key against production data is the most common cause.

Create CNAME records

Create CNAME records applies specifically to Email Domain. It behaves the same in both environments, and the values it depends on are visible in the dashboard for the environment you have selected.

If the behaviour you see does not match this description, check which environment your API key belongs to before anything else — a staging key against production data is the most common cause.