Detect catch-all and disposable emails
MailTester Ninja
Find the addresses of a list that use a disposable email provider, sit on a catch-all domain that accepts every address, or belong to a domain with no mail server. Each address is checked in real time and comes back with its verdict: Accepted, Rejected, Catch-All, Disposable, No MX and more.
Input
Output fields
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The MailTester Ninja Email Verifier Actor is ready to run with the inputs already set for "Detect catch-all and disposable emails". Sign up or log in and you'll land in Apify Console with a copy of this exact task.
Start the "Detect catch-all and disposable emails" task
The MailTester Ninja Email Verifier Actor will start running based on the input automatically. You can also change all the input fields, like email addresses, to match your specific use case.
Receive the "Detect catch-all and disposable emails" output
Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as #, email, result, and more.
Integrate into your workflow
The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also run the "Detect catch-all and disposable emails" task via API.

A catch-all domain accepts mail for every address, existing or not, so a check cannot confirm a mailbox there. This task returns these addresses as risky with the verdict Catch-All.
This task compares each domain with a list of disposable email providers kept up to date by MailTester Ninja, and returns these addresses as invalid with the verdict Disposable.
This task adds no charge of its own: you only pay the Apify usage of the run, which stays tiny. It needs a MailTester Ninja key, either a free API token (50 checks a day) or a plan from $6.99 a week for 100,000 checks a day.
MailTester Ninja keeps no copy of the addresses you verify. The results of this task stay in your own Apify storage, under your control.