For Cold Email Agencies & 100k+ High Volume Senders

Bad lists don't just bounce. They
kill your campaigns. We stop that!

May every email you send find a real inbox...

99.7%
Verification accuracy. Built for high volume usage.
<2%
Bounce rate on lists processed through all 7 layers
First in line.
Dedicated capacity per account. No shared queues.
app.validreach.com/pipeline/live
LIVE
VERIFICATION_PIPELINE
Batch #4821 · outreach_list_june.csv
PROCESSING
TOTAL INPUT
24,800
PROCESSED
0
VALID SO FAR
—
REMOVED
—
0% ETA —
LAYER CHECK STATUS REMOVED
L01
SYNTAX_CHECK
RFC 5321 format validation
—
L02
DNS_EXISTENCE
A + CNAME record lookup
—
L03
MX_RECORDS
Mail exchange verification
—
L04
DISPOSABLE_FILTER
100k+ throwaway domains
—
L05
ROLE_ACCOUNTS
noreply, info, support, bounce
—
L06
SMTP_PROBE CORE
Live RCPT TO handshake · port 25
—
L07
BLOCKLIST
Custom domain + TLD rules
—
OUTPUT — VALID
INVALID —
WORKERS 30
QUEUE 24,800
Sound familiar?

One unverified batch can take down a domain you spent months building.

You already know this. You've probably already felt it.

Hard bounces destroy sender scores

An SMTP 550 "mailbox does not exist" is logged against your sending domain by every major inbox provider. Exceed 2% and deliverability collapses. Most unverified B2B lists bounce at 8–15%.

DOMAIN REPUTATION
CRITICAL RISK

ZeroBounce pricing doesn't scale

Verifying 1M emails/month at even $0.003 per email costs $3,000 — just to clean a list before you send a single email. At 5M it's $15,000. The per-email model was built for small senders. At agency volume, it becomes a recurring tax on your growth.

Monday campaigns die on Friday nights

Self-serve tools queue your 500k-record batch with thousands of other users. Monday morning campaigns need Friday night verification. Shared infrastructure doesn't give you that certainty.

Generic verifiers miss cold email edge cases

ZeroBounce and NeverBounce put you in a shared queue with thousands of other users. No dedicated processing. At high volume, you're paying enterprise prices for self-serve infra that wasn't designed for your agency workflows.

CATCH-ALL YAHOO / AOL SMTP PORT 25 GWORKSPACE
The Verification Stack

Seven layers. Each one catches what the last one misses.

Click any layer to see exactly what it checks and what happens when it fails.

Pre-screening · Instant checks
L01
Syntax & Format Validation
RFC 5321 · malformed, double dots, invalid chars
›
L02
Domain DNS Existence
A + CNAME lookup · fake and expired domains
›
L03
MX Record Verification
Mail exchange records · can it receive email?
›
L04
Disposable Domain Detection
100,000+ throwaway domains · updated daily
›
L05
Role-Based Filtering Optional
User-configured · noreply, info, support and more
›
Deep verification · Live checks
L06
SMTP Mailbox Verification CORE
Live RCPT TO handshake · confirms mailbox exists
›
L07
Custom Blocklist Filtering
Your rules · domain, TLD suffix, exact email
›
L01 · SYNTAX_CHECK Instant
Is this a valid email address format?
The first gate. Runs in microseconds on every address. Anything that fails basic RFC 5321 format rules is removed immediately — no DNS lookup wasted, no SMTP connection opened.
SYNTAX CHECK RESULTS4 addresses
john.smith@company.com✓ PASS
bad@@domain.com✗ double @
user..name@domain.com✗ double dot
sarah@outreach.io✓ PASS
✗
Fails here → Moved to invalid.csv. No further checks run on this address.
L02 · DNS_EXISTENCE Instant
Does this domain actually exist?
Valid format means nothing if the domain is dead, expired, or a typo. This checks DNS A and CNAME records to confirm the domain resolves to something real.
DNS LOOKUP RESULTS3 addresses
user@microsoft.com✓ RESOLVES
user@gmial.com✗ NXDOMAIN · typo
user@shutdownco.com✗ NXDOMAIN · dead
✗
Fails here → Domain doesn't exist in DNS. Moved to invalid.csv.
L03 · MX_RECORDS Instant
Is this domain set up to receive email?
A domain can exist in DNS and still have no email configured. MX records confirm the domain has an active mail server. No MX records means no inbox — sending to it will always bounce.
MX RECORD LOOKUP2 addresses
user@salesforce.com✓ MX FOUND
user@web-only-domain.com✗ NO MX · web only
✗
Fails here → Domain exists but can't receive email. Moved to invalid.csv.
L04 · DISPOSABLE_FILTER 100k+ domains
Is this a throwaway address?
Temporary email services have valid DNS, real MX records, and pass layers 1–3 cleanly. This layer catches them by checking against 100,000+ known disposable domains — updated daily from community sources.
DISPOSABLE CHECK3 addresses
test@mailinator.com✗ DISPOSABLE
user@10minutemail.com✗ DISPOSABLE
real@company.com✓ CLEAN
✗
Fails here → Known throwaway domain. Moved to invalid.csv.
L05 · ROLE_FILTER Optional · User-controlled
Filter role addresses — fully on your terms.
This layer is off by default. You decide if you want it, and you configure exactly which prefixes to filter from your dashboard. noreply@, info@, support@ — or none at all. Changes apply on the next batch.
YOUR CONFIGURED RULESUser-defined
noreply@company.com✗ filtered · your rule
info@agency.com✗ filtered · your rule
sales@company.com✓ allowed · not in rules
john@company.com✓ allowed
◎
Your layer, your rules. Configure from your dashboard. Off by default — filtered addresses move to invalid.csv only if you enable it.
L06 · SMTP_PROBE ● Live handshake
Does this specific mailbox actually exist?
The only check that confirms a real inbox. Our engine connects to the recipient's mail server and sends an RCPT TO probe — the server responds with whether the mailbox exists. No email sent. No trace left.
SMTP SESSION · john@company.com
→ EHLO verify.yourdomain.com
250 Hello verify.yourdomain.com
→ MAIL FROM: verify@yourdomain.com
250 OK sender accepted
→ RCPT TO: john@company.com
250 OK mailbox exists
Free · none
PAYG · 30% B2B sample
Slabs · full SMTP
L07 · BLOCKLIST Your rules
Your custom rules. Applied every run.
Block anything — a specific email, an entire domain, or a TLD suffix. Set it once, applied automatically on every batch. Rules update instantly from your dashboard.
BLOCKLIST RULES APPLIED4 addresses
anyone@competitor.com✗ blocked · domain
user@agency.gov✗ blocked · .gov suffix
specific@remove.com✗ blocked · exact email
prospect@target.com✓ allowed
◎
Blocked → invalid.csv. Rules apply from next batch. No restart needed.
Cost Comparison

The number that makes the decision obvious.

Move the slider to your monthly verification volume. See ZeroBounce's per-email pricing vs. ValidReach flat-rate — at the same scale.

MONTHLY_VOLUME
500k verifications / month
100k250k500k750k1M 1.5M2M3M5M10M+
ZeroBounce charges
$4,000
At $0.008 per verification
ValidReach flat rate
$499
Per Month
You save monthly
$3,501
88% reduction
Pricing

Simple pricing. The more you verify,
the less you pay per email.

Start free — 1,000 verifications a day, no credit card. When your volume outgrows the free tier, pick your Starter slab.

Free
$0
1,000 verifications/day · resets every 24 hours · no credit card required
  • ✓Syntax & format validation
  • ✓Domain DNS existence check
  • ✓MX record verification
  • ✓100k+ disposable domain filter
  • ✓Role-based address filtering
  • —SMTP mailbox probe
  • —Custom blocklist
  • —Dedicated queue
Good for testing the pipeline. When you need SMTP verification and higher volume, upgrade to Starter.
Best Plan
Starter — Pick your volume
$119
/month
$1.19 per 1,000 verifications · credits never expire
ZeroBounce charges ~$275 for the same volume. You save $156/month.
  • All 7 verification layers — full pipeline
  • Full SMTP mailbox probing (L6)
  • Custom blocklist — your rules (L7)
  • Credits never expire · carry forward always
  • Dedicated processing queue
  • Batch summary reports per run
  • Dashboard — upload, verify, download
Scale
Sending
500k+/month?
Volume discounts from 500k upward. Pricing built around your exact numbers — not a fixed slab. Direct conversation, custom SLA, dedicated infrastructure.
500k – 5M+ verifications/month
Volume-based pricing
Custom SLA agreement
Credits never expire
Direct Slack support line
Dedicated infrastructure
Why Cold Email Agencies Choose ValidReach

Built by people who understand cold email infrastructure.

DK
David K.
Founder · Cold Email Agency, US
We run campaigns for 30+ clients. ZeroBounce at $6,000/month was bleeding our margins. The SMTP layer is what actually matters — everything else is pre-filtering. Flat retainer cut our verification cost by over 90%.
SR
Sarah R.
Ops Lead · Cold Email Agency, UK
We send 800k emails a month across campaigns. Bounce rate was at 3.8% — close to the threshold where Outlook starts flagging domains. After full SMTP verification, consistently under 1.2%. That's the difference between a domain that lasts and one that doesn't.
MJ
Marcus J.
Owner · Cold Email Agency, Australia
A burned domain is a client relationship at risk. We had one domain get flagged mid-campaign — cost us two weeks of recovery. SMTP-level verification before every send is now non-negotiable. The credit rollover also means unused volume carries forward, which suits how campaigns actually run.
40K+
SMTP probes / day
7
Verification layers
<1.5%
Avg bounce post-verify
100K+
Disposable domains blocked
🔒 Limited early access

We're onboarding 50 partners first.

Cold email agencies and businesses sending 100k+ emails a month. If that's you — get early access, lock in launch pricing, and be first through the pipeline.

No spam · No sales calls · We'll reply within 48hrs to confirm your spot and walk you through the dashboard

✓

You're in.

Check your inbox — we'll be in touch within 48 hours with next steps and dashboard access.