Short, because there is little to say.
The addresses you submit are held in memory for as long as the request takes, and then they are gone. That is the whole arrangement.
What we do with the addresses you submit
When you verify an address or upload a list, the data is processed in memory by a serverless function and returned to your browser. It is not written to a database, not written to disk, and not logged. When the function finishes, the data is discarded.
Uploaded files are parsed in memory and never stored. The results table you see lives in your browser tab — close it, and the run is gone. The CSV export is generated locally on your machine, not on our servers.
What leaves our servers
To check whether a domain can receive mail, we resolve its DNS records through public DNS-over-HTTPS resolvers operated by Google and Cloudflare. Those queries contain the domain portion of an address only — never the local part, and never the full address. Their handling of DNS queries is governed by their own policies.
Analytics and cookies
MailProof sets no cookies and runs no third-party analytics, advertising or tracking scripts. There is no consent banner because there is nothing to consent to.
Our hosting provider, Vercel, collects standard infrastructure request logs (IP address, timestamp, requested path) as part of operating the platform. These are retained for a limited period for security and reliability purposes and are not used to build a profile of you.
If you contact us
The contact form composes a message in your own mail client — nothing is transmitted to us until you send it. If you do write to us, we keep the correspondence for as long as it takes to help you and no longer.
Your data, your rights
Because we do not store the addresses you submit, there is no record for us to hand over, correct or delete on request. If you have written to us and want that correspondence removed, ask and we will remove it.
Changes
If this policy changes in a way that affects what happens to your data, the date above changes with it. We will not quietly start retaining lists.
Questions
Write to hello@mailproof.app and a person will answer.