Catch-all domains and shared inboxes (Risky)

The Risky group is mostly made up of two kinds of address. A few more are addresses where the mail server gave a mixed answer.

Catch-all domains

Some company domains are set up to accept email for any address, even ones that don't exist. Send to anything@company.com and the server says "yes, got it".

That means we can't tell a real mailbox from a made-up one on that domain. Some of these addresses are real people. Some will quietly go nowhere, or bounce later.

Shared inboxes

These are addresses like info@, sales@, support@ or admin@. They usually reach a real inbox, but it belongs to a team, not one person. They tend to get fewer opens and more spam complaints, and some email platforms watch them closely.

Should I send to them?

It depends on where the addresses came from:

• People who signed up or bought from you: usually fine to include. They know who you are.
• Bought, scraped or very old lists: leave them out. They carry the most risk.

To include them, use Build your clean list on your report and switch on Catch-all domains, Shared inboxes or Mixed answers. See Building and downloading your clean list.