Show the evidence
Results include a category, score, confidence, reason and recommended action instead of one unexplained number.
About VXSentry
Verification should make a list clearer—not make bigger promises.
VXSentry is an email verification product operated by Proshark. It is built for people who want useful pre-send evidence, plain-English results and honest uncertainty.
Why we built it
Bad data is expensive. False certainty is worse.
An email list changes every day. A useful verifier should find obvious problems before they become bounces, while staying clear about the records it cannot confirm.
That is why VXSentry uses six categories instead of forcing every address into pass or fail. Deliverable requires strong mailbox evidence. Catch-all and Unknown remain separate because those results mean something different.
We would rather say “Unknown” than pretend we are certain.
How we approach the product
Keep the limit visible
Mailbox providers can hide information, block checks or change behavior. VXSentry does not turn that uncertainty into a delivery guarantee.
Protect the workflow
Accounts use hashed passwords and HTTP-only sessions. Processing stays server-side, secure response headers are configured, and payments use Square-hosted checkout.
Let customers stay in control
Exports keep original CSV columns. VXSentry does not automatically remove contacts or alter an outside sending platform.
Straightforward buying
Use it when you need it.
VXSentry sells one-time verification credit packages. There is no mandatory monthly verification subscription. Buy the volume you need, run a list, and return when the next list needs attention.
Bring the list. See the evidence.
Start with a free email check or upload a CSV when you are ready.