Email verification

Stop bounces before they ever leave.

A single dirty list can torch a domain you spent months warming. ReachHQ verifies every address the moment you reveal it, then checks it again right before each send. Bounces stay under 1% and your sender reputation keeps climbing.

No credit card · Verified at reveal · Re-checked at send

Verification result Live
99.4%deliverable
Valid · ready to send Risky · catch-all flagged Invalid · never sent
Syntax
MX & SMTP
Catch-all
Risk score
99.4%deliverable <1%bounce rate Reveal + sendverified twice Syntax to SMTPfull-stack check
Anatomy of a check

What every address goes through

A yes-or-no guess is not verification. Each address runs through a full stack, from syntax down to a live SMTP handshake, and returns a clear verdict. Risky and catch-all addresses get flagged, never quietly sent.

Verdict
99.4% deliverable

One verdict per address: valid, risky or invalid

Every check rolls up into a single score. Valid sends, risky is flagged for your call, invalid is skipped before it can bounce.

Valid · ready91%
Risky · flagged6%
Invalid · skipped3%

Syntax

RFC formatting and typo checks catch broken addresses before anything else runs.

MX & SMTP

We resolve the mail-server records and open a live SMTP handshake to confirm the mailbox can receive.

Catch-all detection

Domains that accept every address cannot be confirmed like a real mailbox, so we flag them as risky.

Role & disposable

Shared inboxes like info@ and support@, plus throwaway temp-mail domains, are caught and called out.

Risk score

Every signal combines into a deliverability rating, so a borderline address is your decision, not a surprise bounce.

Two-stage

Checked at reveal, re-checked at every send.

Lists drift between the day you save them and the day a sequence fires. ReachHQ verifies when you reveal an email, then again right before each send, so the address in your campaign is the one that just passed every check.

At reveal At send<1% Bounce0 Surprises
What clean data protects

Verification is reputation insurance

Every bounce you avoid is a signal you never send to Gmail and Outlook. Keep the list clean and the numbers that decide whether you land in the inbox all move the right way.

Bounce rate
<1%
▼ held under one percent
Sender score
97/100
▲ reputation kept healthy
Inbox placement
95%
▲ lands in primary, not spam
Deliverable at reveal
99.4%
▲ verified before it hits a list
Domains kept healthy
All
▲ no burned sending domains
Spam complaints
↓ Low
▼ clean lists complain less
The two-stage guarantee

Verified once is not enough. We do it twice.

An address that was valid when you revealed it can be dead by the time a sequence reaches it weeks later. So verification is wired into the flow at both ends: first at reveal, then again the instant before each send.

Verified at reveal, every email from 450M+ contacts
Re-verified the instant before each individual send
Invalid never sends, risky and catch-all stay flagged
Bounces never quietly burn the reputation you built
Verify emails free
Send guard per send
1Verified at revealChecked when you unlocked it
2Re-checked at sendRe-verified seconds before
CACatch-all caughtHeld for your callFlagged
Invalid blockedPulled before it firedSkipped
<1% bounce rate heldStart free
FAQ

Email verification, answered.

Do I have to remember to verify before I send? +

No. Verification runs at two points automatically: when you reveal an email from the 450M+ contact database, and again before each individual send. Invalid addresses are pulled before a sequence fires, so your bounce rate stays under 1% without you lifting a finger.

How accurate is the verification? +

Each address runs through syntax, MX and a live SMTP handshake, catch-all detection, role and disposable filtering, and a risk score, returning a valid, risky or invalid verdict. Revealed emails stay 99.4% deliverable, which keeps campaign bounce rates under 1%.

How do you handle catch-all addresses? +

Catch-all domains accept any address, so an SMTP check cannot confirm the specific mailbox. ReachHQ flags them as risky rather than passing them off as valid, so you decide whether to send, skip or hold instead of being surprised by a bounce.

How much verification do I get? +

Bulk verification volume is plan-based: 2,000 on the free trial, 50,000 on Solo and 500,000 per month on Scale, for lists you import yourself. The reveal-time and send-time checks that protect your live campaigns run automatically and are always on.

Is there a verification API? +

Yes. Verify single addresses or batches through the API or MCP server on Scale, so you can validate emails inside your own forms and pipelines. The same full-stack checks power the API as the dashboard.

Never pay to bounce again.

Verified at reveal, re-checked at every send, bounces held under 1%. Start free in 2 minutes, no card.