Email Setup
Multi-Alias Email
Route different email addresses to separate inboxes within one workspace.
A single workspace can have multiple inboxes — one per product, region, or team function. Each inbox has its own email address, routing rules, and (optionally) AI configuration.
Common multi-inbox setups
| Scenario | Inboxes |
|---|---|
| By function | support@, billing@, sales@ |
| By region | support-us@, support-eu@ |
| By product | app-support@, api-support@ |
| By brand | hello@brand1.com, hello@brand2.com |
Creating additional inboxes
- Go to Settings → Inboxes → New inbox
- Repeat the custom domain setup for each new address
- In Resend, add a route for each new address pointing to its webhook URL
Each inbox can have independent:
- Default assignee (agent or group)
- AI settings (toggle overrides and thresholds)
- Tags applied automatically to incoming tickets
- SLA targets
Catch-all wildcard
If you want every address on a domain to route to Ticket0 (with Ticket0 splitting them by alias), use a wildcard route:
- In Resend, set the match pattern to
*@yourcompany.com - In Ticket0, create an inbox for each alias you want to handle separately
- Use routing rules (Settings → Routing) to direct tickets by their
To:address to the right inbox
Routing rules
Routing rules evaluate conditions on each incoming ticket and set the assignee or inbox. For example:
- If
Tocontainsbilling@→ assign to Billing group - If
Subjectcontainsurgent→ assign to On-call agent
Configure rules in Settings → Routing → New rule.