Is Zoho Mail a Catch-All Domain?

Why Zoho Business Domains Are Often Catch-All

Zoho Mail's paid plans (Mail Lite, Mail Premium, Workplace) all include a catch-all mailbox feature. When an administrator enables it, any email sent to any address at the domain - whether it exists or not - is accepted and delivered to a single catch-all inbox. This is a popular configuration for small businesses that want to avoid missing email sent to typo'd addresses like [email protected] vs [email protected].

The result: when you email a prospect at a Zoho-hosted domain, there's a significant chance the domain is catch-all - your SMTP verification returns 250 OK, but the address may not correspond to a real person's dedicated inbox.

How BounceZero Handles Zoho Catch-All

BounceZero's catch-all detection works on every domain regardless of hosting provider:

1. 1. Probe with a known-invalid address - if the server accepts it, the domain is catch-all.
2. 2. Flag as accept-all - the address is not marked verified or invalid, but flagged for further scoring.
3. 3. Apply ML scoring - domain age, MX reputation, DMARC/SPF presence, and business signals are used to estimate real deliverability.