CheckNumber.AI 
Outlook Account Checker
outlook $2 per 10,000 checks
- Core data available
- email, activated
- Best for
- Registration filtering
No-code CSV REST API Exportable results
Outlook Registration Checker
Check whether an email address is registered as a Microsoft/Outlook account
Check whether an email address is registered as a Microsoft/Outlook account. Upload a CSV or use the REST API, then export one structured result for every input row.
Input type
$2
Per 10,000 checks
CSV + API
Workflow
Submitted email a***@yahoo.com
Outlook status yes / no
Outlook Account Checker No account, number, or SIM required
Every check runs through official platform APIs on our own infrastructure. You never connect, bind, or use your own account, phone number, or SIM card — just upload your list or call the API and get results.
What CheckNumber detects for Outlook
Registration status
Check whether an email address is registered as a Microsoft/Outlook account
Mapped bulk results
Bulk workflow — process CSV files or use the REST API, with every result mapped to its original input.
Passive, no contact
Passive check — no email is sent and the mailbox owner is never notified.
What You Can Check
A focused Outlook registration check
Use the Outlook task when the required output is a row-level registration signal mapped to each submitted email address.
| Outlook product | Task type | Input | Core data available | Best for | Current price |
|---|---|---|---|---|---|
| Outlook Account Checker API documentation | outlook | Email addresses | email, activated | Registration filtering | $2 per 10,000 checks |
Core Pornhub data
What the Outlook task returns
The result file maps one row to each submitted email with the fields below.
Outlook Account Checker
outlook - The email address supplied for the check.
- activated
- Whether the account is registered on Outlook (yes or no).
Run an Outlook batch in three steps
Use the no-code platform for uploaded lists or the REST API for recurring workflows.
- 1
Prepare your email list
Provide one email address per row.
- 2
Create the pornhub task
Upload the file or call the API with task_type set to pornhub.
- 3
Export mapped rows
Download the completed file and match each result to its source email.
Common Use Case
Improve Outlook list quality before outreach
Clean and segment authorised email lists using a row-level registration signal.
No-code CSV REST API Exportable results
Signal 1
Check whether an email address is registered as a Microsoft/Outlook account
Signal 2
Bulk workflow — process CSV files or use the REST API, with every result mapped to its original input.
Signal 3
Passive check — no email is sent and the mailbox owner is never notified.
Outlook FAQ
Can I check email addresses in bulk?
Yes. Upload a CSV or use the REST API, then export one result for every submitted email address.
Does the check send an email or notify the owner?
No. The check is passive and does not send email, log in to, or notify the mailbox owner.