VeriMails vs Instantly

Instantly Pricing Screen

Instantly's verification lives inside a broader sending platform. This pricing screen gives buyers the surrounding credit context before they decide whether a separate pre-send verifier is worth adding.

Verification Depth

Instantly's verification is designed to do one thing well: stop you from sending to obviously dead addresses. When you upload a CSV you can tick a box to verify the leads, and Instantly sorts each contact into Verified, Risky, or Invalid. By default it will not send to anything marked Risky or Invalid, so a portion of bad addresses is filtered automatically. For a clean, recent list this is often enough to keep a campaign out of trouble.

The limitation is depth. Instantly's check is a bounce filter bundled inside a sending tool, not a dedicated verification engine. It does not expose a standalone verification API, it is not built to clean legacy lists of hundreds of thousands of records, and it does not surface the granular signals a verification specialist looks for, such as detailed catch-all, disposable-domain, and role-based signals. Independent reviews of Instantly's verifier note that it lacks the deeper layers, including spam-trap risk assessment and alias detection, that a dedicated tool runs as standard.

VeriMails is built only for verification. Every address receives a fresh deliverability check with catch-all, disposable-domain, and role-based signals. The result is a clear status for each email and a practical reason behind it. VeriMails is built for high-volume list verification and clear deliverability decisions. It does not send your campaigns. It makes sure the list you load into Instantly is genuinely deliverable first.

Catch-all Handling

Catch-all domains are the hardest case in email verification. These domains are configured to accept mail for any address, so the receiving server answers every probe with a positive response whether or not the mailbox actually exists. Instantly markets a catch-all recovery feature and states it can reclaim several hundred contacts from every thousand leads that other tools mark as risky or unknown. That can expand your usable list, but it is a recovery and send decision made inside the sending platform, and you have limited visibility into the confidence behind each call.

VeriMails takes a deliberately honest approach with catch-all detection. It identifies which domains on your list are catch-all and flags them clearly in the results. It does not pretend a catch-all mailbox can be confirmed when the verification result cannot prove one exists. Instead, you get an accurate label on every catch-all domain, so you can decide whether to send, hold, or route those contacts into a separate, slower segment. For B2B lists, where a large share of company domains are catch-all, that clarity is what protects your sending reputation. You go into Instantly knowing exactly which contacts are confirmed and which carry catch-all risk.

Using VeriMails With Instantly

VeriMails and Instantly are not competitors. They sit next to each other in the same workflow, and the order matters. The recommended sequence is to verify the raw list with VeriMails first, then upload the cleaned file into Instantly.

A typical workflow looks like this. You pull a list from a scraper, a data provider, or your CRM. Before that list touches a sending tool, you upload the CSV to VeriMails. VeriMails auto-maps the email column and supports asynchronous processing for large CSV jobs, running the full check on each address. You download the filtered results, keep the addresses that passed, set aside the catch-all segment, and discard the invalid and disposable addresses. Only then do you import the clean file into Instantly and build your sequence.

The benefit is layered protection. Instantly's built-in check still runs as a second safety net at upload, but it is no longer the only thing between a messy scraped list and your warmed inboxes. Your bounce rate stays low from the first send, your domains stay healthy, and you do not spend Instantly credits sending to addresses that were never going to land. Developers can wire this in directly: the VeriMails REST API offers single and bulk endpoints with JSON responses, webhook and batch support, and fast response times, so verification can run automatically before a list is pushed into Instantly.

Pricing and Value

Instantly and VeriMails are priced for different jobs, so a head-to-head price is misleading. Instantly is a monthly subscription for the whole outbound stack. Public plans start at around $47 per month for Growth and scale up through Hypergrowth and Light Speed tiers, with verification metered separately at 0.25 Instantly Credits per lead. That credit cost is reasonable for everyday campaign hygiene, but it is metered against the same credit pool you use for the lead database and other modules, and a subscription does not roll over.

VeriMails sells verification credits outright. You buy a credit pack, you use it whenever you want, and the credits never expire. There is no monthly fee for one-time credit packs and no risk of losing unused balance. For teams that verify large lists in waves, paying a flat per-credit rate is usually far cheaper than spending sending-tool credits on verification. VeriMails also offers monthly subscriptions if you prefer predictable billing, starting at $15 per month for the Starter plan.

VeriMails Credit Pricing

Credits never expire. Credit packs do not require a subscription or monthly fee. New accounts receive 100 free credits on signup.

Who Should Verify Separately

Run VeriMails before Instantly if your list is scraped, purchased, or older than a few weeks, since those lists carry the most invalid and stale addresses. Verify separately if you send at high volume across many domains, where even a small bounce rate can damage placement. Verify separately if your audience is B2B and full of catch-all company domains that need an honest label rather than an automatic send decision. And verify separately if you want a clean audit trail of why each address passed or failed, or if you need to plug verification into a CRM or pipeline through an API that a sending tool does not expose.

Who Instantly's Built-in Check Is Enough For

Instantly's built-in verification is a real, useful feature, and for some teams it covers the job on its own. If your lists are small, freshly sourced from a reputable provider, and made up mostly of standard business mailboxes, the upload-time check will catch most of the bad addresses. If you send modest volumes from a handful of inboxes and you are comfortable letting Instantly make the catch-all send decision for you, the bundled verifier keeps things simple inside one tool. The case for a dedicated verifier grows as your volume rises, your lists age, and the cost of a reputation problem gets larger.

Frequently Asked Questions