Skip to content
Start with 100 free verification credits
Qualisend
Features

Every check, explained.

The same eight-stage pipeline behind every verdict — here's what each part does for your list.

Single check

One address, instantly.

Type an address, get the local verdict immediately and the SMTP result seconds later.

Use it ad hoc from the dashboard or wire the same endpoint into your signup form. Sub-flags (free mail, role, disposable, catch-all) come with every result so your logic can be as strict or forgiving as you like.
Verify via the API
Bulk cleaning

Whole lists, cleaned.

CSV in, verdicts out, live progress in between.

Map your email column, upload, and watch counts settle in real time. Filter the results by status, expand any address for full domain and account detail, and export exactly the slice you want.
Bulk pricing
Statuses

Verdicts you can trust.

Four statuses, each with a precise reason — no mystery buckets.

Catch-all is reported as risky, not optimistically rounded up to deliverable. Every verdict carries a 0–100 confidence score and a machine-readable reason — accepted, low deliverability, rejected, timeout — so your logic knows exactly why.
Try a check
Deliverable

The mailbox exists and accepts mail — safe to send.

Risky

May bounce or land in spam — the address can't be fully confirmed as safe.

Undeliverable

The address doesn't exist or was refused — it will bounce.

Unknown

The mail server gave no clear answer — worth trying again later.

Protection

Reputation, defended.

Bounces are the loudest signal mailbox providers hear about you.

Disposable domains, role accounts, typos and dead mailboxes are removed before your campaign sends — keeping your bounce rate under providers' penalty thresholds and your future sends in the inbox.
Deliverability guides
Visibility

See every send-ready list.

A ledger of every address you've ever checked, with analytics on top.

Search across all checks, filter by verdict, expand any row for MX, provider and probe detail. Stats and result-mix trends show your list quality moving over time.
All features
Reports

Proof you can share.

Turn any verification run into a one-page Email List Health Report — a branded PDF, ready to send.

Deliverable, risky, undeliverable and unknown counts for the whole list, the bounce rate before and after cleaning, and an estimate of the wasted sends — and dollars — you avoided. Export any date range and hand it to a client, a manager, or a deliverability auditor.
Generate your report