Parked or alias domains can create confusing mail behavior when users expect separate mail routing, separate mailboxes, or different MX destinations for the alias.
Common symptoms
- Mail to the alias does not behave as expected
- Users expect separate inboxes for a parked domain
- Adding a parked domain changed mail handling
Troubleshooting steps
- Confirm whether the parked domain should share mail behavior with the primary domain or use an external mail provider.
- Review the MX records and local mail routing settings for the alias.
- If the alias should not use local mail, update DNS and routing to the intended provider.
- Avoid creating mailbox assumptions for parked domains without verifying how aliases map in your environment.
- Test inbound and outbound mail using both the primary and parked domain addresses.
Additional notes
- Website aliasing and email routing do not always behave the same way.
- A parked domain may still require unique DNS decisions if mail is handled elsewhere.
When to contact support
Contact support if adding the alias changed recipient delivery unexpectedly.