Tomba checks whether an email address can receive mail, without sending an email. This lets you remove bad addresses before they bounce. A bounce is an email that can't be delivered.
What Tomba checks
Format. Is the address written correctly? A space, a missing
@or a run of random letters fails here.Domain. Is the part after the
@, such astomba.io, live and able to receive mail?Mailbox. Tomba asks the mail server whether the mailbox exists. No email is sent.
Tomba also spots three kinds of address that need care:
Catch-all: a catch-all domain accepts mail sent to any address, so we can't confirm one person's mailbox. The app calls this Accept All.
Webmail: a free email service, such as
gmail.com. Tomba checks these and marks them as webmail.Disposable: a throwaway inbox. Tomba doesn't run a check on these.
What the results mean
To try it, open Verify and type an address. You'll see the result. Click Show details to see the checks behind it.
Result | What it means | What to do |
Valid | The mailbox exists and accepts mail | Send |
Accept All | The domain accepts all mail, so this mailbox can't be confirmed | Send with care |
Blocked or unknown | The mail server blocked the check or didn't answer | Send with care, or verify again later |
Invalid | The mailbox doesn't exist | Remove it from your list |
Disposable | The address is a throwaway inbox, so no check was run | Remove it from your list |
Each result also has a score. The higher the score, the more likely the address can receive mail. To learn more, see Email Verifier and Confidence Score.
💳 Credits: Each check uses 1 verification credit. Disposable results are free. A single check with an unknown result is also free, but in a bulk it's charged. The Free plan has no verification credits.
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