Email verification
Clean lists before you send, not after the bounces.
Built-in verification on every plan. Invalid, disposable and risky addresses are flagged before they can touch your sender reputation.
6
checks per address
250
free verifications a month
100,000
a month on Business
$0
extra tools required
In the list
A verdict next to every address.
Deliverable, undeliverable, risky or unknown, right in the subscriber table. Filter on it, segment on it, or remove the bad rows in one click.
- Verification status on every subscriber
- Filter and segment by result
- Run on import or on demand
In segments
Send only to addresses that can receive.
Verification result is a segment condition, so a campaign can target deliverable addresses only and a win-back series can skip the risky ones.
- Verification result as a rule
- Counts update as results change
- Works in campaigns and automations
How it works
Three steps, no extra tool.
- 01
Upload or import your list
Import subscribers via CSV, copy-paste, or API. Existing subscribers are verified automatically when you trigger a list clean.
- 02
We verify every address
Our verification engine checks syntax, MX records, SMTP mailbox existence, catch-all status, disposable domains, and role accounts — in seconds.
- 03
Send to verified contacts only
Invalid and risky addresses are flagged automatically. Send your campaign knowing every address on your list can actually receive your email.
What gets checked
Six checks on every address.
SMTP Mailbox Verification
Connects directly to the recipient’s mail server to confirm the specific mailbox exists and accepts email.
Catch-All Detection
Identifies domains configured to accept all incoming email regardless of the specific address. Flagged as risky.
Disposable Email Detection
Automatically filters temporary and throwaway email addresses from 55,000+ known disposable providers.
Role Account Detection
Flags generic addresses like info@, admin@, support@ that typically have low engagement and high complaint rates.
Syntax Validation
RFC-compliant format checking catches typos, missing characters, and malformed addresses.
MX Record Verification
Confirms the recipient’s domain has valid mail exchange records and can actually receive email.
Versus standalone tools
Included, not bolted on.
Standalone verification services charge per address on top of the email platform you already pay for.
| Feature | IGSendMail Free | Starter | Pro | Business | ZeroBounce | Bouncer |
|---|---|---|---|---|---|---|
| Monthly verifications | 250 | 5,000 | 25,000 | 100,000 | Pay-per-use | Pay-per-use |
| Cost | $0 | $19 | $49 | $99 | $80/10K | $50/10K |
| Email marketing included | ||||||
| Automation included | ||||||
| Analytics included |
Standalone prices are published list prices for a 10,000-address batch.
Questions
Good to know.
- How does built-in email verification work?
- When you import a subscriber list or trigger a list clean, our verification engine checks every email address against multiple validation layers: syntax check, MX record lookup, SMTP mailbox verification, catch-all detection, disposable email filtering, and role account detection. Invalid and risky addresses are flagged so you can remove them before sending.
- How accurate is the email verification?
- Our verification engine achieves 85–90% accuracy across all check types. SMTP mailbox verification — the most important check — confirms whether a specific mailbox exists and can receive email.
- Do verification credits reset monthly?
- Yes. Each plan includes a set number of verification credits that reset at the start of every billing cycle. Plan credits do not roll over; purchased pack credits do.
- Is email verification really included for free?
- Yes. Every IGSendMail plan — including the Free plan — includes email verification credits. There is no separate subscription, no per-email surcharge, and no third-party tool required.
- What happens when I exceed my verification credits?
- You can buy a verification pack at any time: 5,000 for $19, 25,000 for $59 or 100,000 for $149. Unused pack credits carry over while your subscription is active.
- Can I verify emails in real-time on my signup forms?
- Yes. Our API supports real-time email verification, so you can validate addresses at the point of capture.
- What types of emails get flagged?
- Our system flags six categories: invalid mailboxes, catch-all domains, disposable/temporary emails, role accounts, syntax errors, and domains with no MX records. Each contact receives a status: valid, invalid, or risky.
- How can I verify emails in bulk?
- Upload or import your list into IGSendMail and trigger a list clean. The verification engine runs every address through syntax, MX record, SMTP mailbox, catch-all, disposable, and role-account checks, then marks each contact valid, invalid, or risky so you can remove bad addresses before sending. Bulk verification is included in every plan, including the free plan, and extra packs start at $19 for 5,000.
- What is the cheapest email verification service?
- Standalone verification tools charge per email on top of your email marketing subscription. IGSendMail includes verification credits in every plan, including the free plan, with no separate subscription, and extra packs start at $19 for 5,000, so for most senders the cheapest option is verification that's already built into the platform they send from.
Verify your first list free.
250 verifications a month on the free plan. No card.