DomailfixWhat is a catch-all (accept-all) email address?
You verify an address and the result says Risky or accept-all. It is not wrong, and it is not broken. It means the company's mail server accepts mail for every address, real or not. Here is what that means and what to do about it.
What catch-all means
Normally, when an email verifier asks a mail server about jane.doe@company.com, the server says either "yes, that mailbox exists" or "no such user". A catch-all (also called accept-all) server says "yes" to every address at the company, including ones that do not exist, such as xyz123@company.com.
Companies set this up for a few reasons:
- so no customer email is lost because of a typo in a staff name
- to collect all mail in one inbox when the company is small
- for security, so outsiders cannot find out which addresses are real
Many larger companies and some email providers work this way.
Why verifiers can't fully confirm them
Because the server says yes to everything, its answer tells you nothing about that one mailbox. The real address might bounce later, after the server has accepted it, or the message might land in a general inbox nobody reads.
That is why an honest verifier marks these addresses Risky rather than Valid. A tool that calls every catch-all address valid is guessing, and you only find out when your bounce rate goes up.
How Domailfix handles them
Domailfix first checks whether the company accepts every address. If it does, it looks for extra evidence that this exact person and address are real. When the evidence is strong, the address is marked Likely valid with an estimate badge. When there is no evidence, it stays Risky. Either way, you can see why under Show details.
How to send to catch-all addresses safely
- Send to them separately. Put catch-all addresses in their own small batch, after your confirmed addresses.
- Start small. Send to a few hundred first and watch your bounce rate. Stop if it goes above 2 to 3 percent.
- Prefer the company's real format. An address that follows the format the company uses (see email formats) is far more likely to exist.
- Keep your list fresh. People leave companies. Re-check addresses older than a few months.
- Remove bounces at once. If an address bounces, never send to it again.
Catch-all vs other Risky results
An address can also be Risky because the mailbox is full, the address is a disposable (temporary) address, or it is a role address such as info@ or sales@. The details under each result say which one applies.
Tip: if a catch-all address belongs to someone important, a short personal message with a clear subject line is the best way to find out. If it bounces, you lose one email, not your reputation.
Check a list now: verify emails free with Domailfix.
Questions and answers
Is a catch-all email address valid?
It might be. The company's server accepts every address, so the server's answer cannot prove that this mailbox exists. Treat it as Risky unless there is other evidence.
Should I delete catch-all addresses from my list?
Not always. Many are real. Send to them in a separate, small batch and remove any that bounce.