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The catch-all feature

If your mail server uses LDAP or Active Directory, we recommend using that and disabling the catch-all feature:
Using Active Directory (Exchange) or LDAP to set up valid email addresses

What is the Catch-All Feature?

Without the catch-all feature, you must maintain a list of valid email recipients that SpamHero should accept mail for. Any email sent to an unlisted address in the SpamHero control panel will be rejected.

With the catch-all feature enabled, SpamHero accepts mail for any address on your domain, so you don’t need to manually maintain a list of valid recipients.

The catch-all feature is enabled by default on all domains but can be disabled if needed.

Why would I disable the catch-all?

If you receive a high volume of messages for invalid recipients, it could push your account over the inbound message limit, resulting in overage charges. Disabling the catch-all prevents messages to invalid addresses from counting toward your total.

For most domains, keeping the catch-all enabled does not typically cause overages.

Last updated March 5, 2025