I lost a $4,000 client because of one bad email address

Last year I was running outreach for a B2B campaign.
600 contacts. Weeks of research. Carefully written emails. I was confident this was going to convert.

Hit send.
Within 48 hours my bounce rate was at 22%. Gmail flagged my domain. Emails stopped landing in inboxes. The campaign was dead.
I went back and checked the list. Hundreds of email addresses that looked perfectly fine. But were either abandoned, invalid, or pointing to mail servers that hadn't existed in years.

The prospect I was most excited about, the one I'd spent 3 hours researching and personalizing a pitch for, had an email address that was invalid. Never received my message. Never knew I existed.
That deal would have been worth $4,000.
All of it was preventable.

Here's what I wish I had done:
Verified every email address before sending. Takes 2 seconds per email. It would have saved the entire campaign.
So I built the tool I wish existed.

It's called Jarvis Reach Email Verifier.
No signup. No credit card. Just paste an email and instantly know:
✅ Does this mailbox actually exist?
✅ Is the mail server live and accepting emails?
✅ Is this a disposable or throwaway address?
✅ Is this domain a catch-all (risky to send)?
✅ Will this email bounce?
Answer in under 2 seconds.
👉 Try it free → app.jarvisreach.io/free-email-verify

I built this because every other verifier makes you:

Create an account
Verify your own email
Pick a plan
Enter payment details
And THEN let you check one email

That's insane. If you just want to verify 3 emails before a send, you shouldn't have to go through a 5-step onboarding.
Ours is just: paste → verify → done.

Who's been using it:
Sales reps verifying leads before cold outreach.
Founders cleaning old contact lists.
Recruiters checking candidate emails before reaching out.
Marketers scrubbing lists before a big campaign send.
Anyone who's ever hit send and immediately regretted it.

The one thing I learned building this:
The hardest emails to handle are catch-all domains mail servers that say "yes" to every email you throw at them, whether the mailbox exists or not. Most verifiers just mark these as valid. We mark them as "risky" and tell you why, so you can make an informed decision before sending.
That nuance alone has saved users from burning their sender reputation on entire corporate domains.

Try it on any email you're not 100% sure about.
The next campaign you send before you hit send, run your list through this first.
Two seconds per email. Free. No signup.
👉 app.jarvisreach.io/free-email-verify
If you've been burned by bounces before, you know exactly why this exists.
And if you haven't been burned yet, you will be. Verify first.

Drop a comment if you try it — I read every one.