Routing
How Catch-All Addresses Work in Google Workspace
Quick Answer
A catch-all address routes mail sent to any non-existent address at your domain to a single specified mailbox instead of bouncing. It can be useful for catching typos, but also increases spam volume since it accepts mail to any address at all.
Catch-all routing is a tradeoff: it prevents mail lost to typos in the address, but it also means your domain accepts mail sent to essentially any address, including ones targeted by spam.
Common Causes
- A catch-all set up once and forgotten, quietly accumulating spam.
- Uncertainty about whether "missing" mail actually bounced or landed in a catch-all mailbox instead.
- No catch-all configured, so a small typo in a customer's outgoing address causes a hard bounce instead of reaching anyone.
Safe Troubleshooting Steps
- Decide whether the tradeoff (catching typos vs. more spam) makes sense for your domain.
- If using one, check the catch-all mailbox periodically since it can accumulate significant spam volume.
- If mail seems to be missing, confirm whether it may have landed in a catch-all mailbox instead of bouncing.
What to Verify
- You know whether a catch-all is currently configured for your domain.
- If configured, someone actually reviews that mailbox periodically.
When Professional Help May Be Useful
If you are unsure whether a catch-all is active, or a specific message might have landed there, this is a quick thing to confirm as part of a broader routing review.