Disposable Email Checker
Check whether an email address uses a known disposable or temporary email provider.
Need to monitor this across every client domain you manage? ActiScan does bulk scanning, scoring, and white-labeled reporting for MSPs.
How to Use the Disposable Email Checker
Enter an email address
The full address, e.g. someone@example.com.
Click Check
ActiScan checks the domain against a list of known disposable/temporary email providers.
Read the result
A pass/fail status plus a plain-English explanation of what it means.
What Your Result Means
Not a known disposable domainPassThe domain isn't on ActiScan's list of known throwaway-email providers. This doesn't guarantee the mailbox is real, active, or monitored – only that it isn't a recognized temporary-email service.
Known disposable domainFailThe domain is a well-known temporary/throwaway email service. A signup or lead form submission from this address is unlikely to reach a real, ongoing mailbox.
What Are Disposable Email Addresses?
Disposable (or temporary) email services give out short-lived, often anonymous mailboxes – some auto-delete after minutes or hours – specifically so someone can receive a one-time verification email without giving out a real, ongoing address. They're a real, legitimate privacy tool for plenty of use cases, and also a common way to get past a signup form without providing a mailbox anyone can actually reach afterward.
How this checker works, honestly: it matches the email's domain against a curated list of long-established, well-known providers – it does not query any external database or attempt to contact the mailbox itself. New disposable services appear constantly, so treat a "pass" as one signal, not proof.
Next Steps
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Start free →Frequently Asked Questions
Is this disposable email checker free?
Yes – check any email address for free, no signup required.
How comprehensive is the list?
It's a curated list of long-standing, well-known disposable/temporary email providers – not a comprehensive block-list. Real disposable-domain lists run into the thousands of entries and need constant upkeep as new throwaway services appear. A "pass" here means "not on this specific list," not a guarantee the address is a real, monitored mailbox.
Why would I check this?
Mainly for lead-generation and signup forms – filtering out throwaway addresses before they enter a CRM or trigger a welcome-email sequence that will just bounce or go unread.
Does a disposable address mean the person is doing something malicious?
Not necessarily – plenty of people use throwaway addresses for legitimate privacy reasons (avoiding spam from a one-time signup). It's a signal worth weighing, not automatic proof of bad intent.
Can this verify the mailbox actually exists and accepts mail?
No – that's a different check (mailbox verification/SMTP probing), which this tool doesn't perform. This only checks whether the domain itself is a known disposable-email service.