Does Qualisend have a native WooCommerce integration?

Yes. The native WooCommerce connector is live. You connect WooCommerce directly in Qualisend and clean your list in place, verifying customers and writing results back as suppress, archive, or tag, with real-time checks on new contacts and scheduled re-cleans. It is the fastest path; the CSV export loop and the REST API are the manual alternatives.

How many addresses can I verify at once?

Up to 1,000,000 addresses per bulk job, with duplicates charged only once and live progress as it runs. The free plan includes 100 one-time credits that never expire, which is enough to verify a first sample of your store's customers before you scale up.

Can I verify addresses before they enter WooCommerce?

Yes. Call the Qualisend REST API from your checkout or account-creation flow, or build a no-code Zapier, Make, or n8n automation on WooCommerce's new-customer or new-order trigger, so an address is validated at the point of capture and a typo or throwaway domain never becomes a customer record.

Should I delete undeliverable customers or just suppress them?

For addresses tied to real past orders, suppress or archive rather than delete, so you preserve order history and revenue reporting while stopping future sends. Reserve deletion under Users for junk accounts with no orders, like abandoned bot or discount-farming signups.

How does Qualisend handle catch-all domains?

Catch-all domains accept every address at the server, so no verifier can confirm a specific mailbox exists there. Qualisend returns these as risky with a catch-all sub-flag plus a confidence score, so you segment and throttle them and let engagement, not a bounce, decide whether to keep mailing.

Native one-click sync — live

Keep your WooCommerce customer list clean and deliverable

WooCommerce sends every order confirmation, receipt, and shipping update from your store, but it has no idea whether the email a shopper typed at checkout can actually receive them. Qualisend closes that gap: the native WooCommerce connector verifies your existing customers in place and screens every new checkout in real time, and a scoped REST API lets you validate an address before the order even saves. Fake, mistyped, and dead inboxes get caught before they bounce.

Clean a list for free

Native connector

Connect WooCommerce and clean it in place

Connect WooCommerce and Qualisend verifies your customer emails in place — no export. Clean the customers you already have, tag the risky ones, and check every new customer in real time so order confirmations and receipts actually land.

Prefer to work by hand, or verify at signup through your own stack? The CSV export → verify → reimport loop below and the REST API are fully supported too.

Connect WooCommerce

WooCommerce handles

What WooCommerce cleans for you

WooCommerce's built-in email is purely transactional, configured under WooCommerce > Settings > Emails, and it fires through WordPress wp_mail (or your SMTP plugin) the moment an order changes status. That system is fire-and-forget: it hands the message to your mail server and moves on, with no bounce processing, no complaint feedback loop, and no suppression list of its own. Customer records live under Users and in the WooCommerce > Analytics > Customers report, but WooCommerce never marks an address as bad or stops mailing it. If a receipt hard-bounces, nothing in WooCommerce records that or protects the next send.

The gap it leaves

What it can't catch

Because WooCommerce only reacts after a message is sent, it can never catch a bad address before the first send, and it does not react even then. It cannot spot a checkout typo, a disposable throwaway domain, a role inbox like info@ or support@, a full or long-decayed mailbox, or a catch-all domain that accepts everything and silently drops most of it. Any customer list you import from an old store, a spreadsheet, or another platform arrives with its bounce history stripped, so every stale address looks brand new to WooCommerce. The result is a list that only reveals its dead weight the hard way, one bounced receipt at a time.

Why a clean WooCommerce list matters

Order confirmations, receipts, and shipping notices are the emails customers actually expect, and when they bounce your store looks broken and support tickets pile up. Every one of those messages rides on your store's sender reputation, so a batch of fake or typo checkout addresses drags down deliverability for the receipts that need to land. Since February 2024, Gmail and Yahoo enforce bulk-sender rules that require keeping spam complaints under 0.3% and cap the bounce rates they tolerate, and a dirty list blows straight through both thresholds. Cleaning the list protects the inbox placement your whole store depends on.

Prefer CSV or the API? Here's the manual path

The native connector is the fastest route, but the CSV loop works on any WooCommerce plan: export from WooCommerce, verify in Qualisend, and act on the results.

Export your customers to CSV

In WordPress admin, open WooCommerce > Analytics > Customers and click Download to export the customer table as CSV, or export the Users list. Keep the email column and any customer ID or username so you can match results back.

Verify the file in Qualisend

Upload the CSV as a bulk job. Qualisend cleans up to 1,000,000 addresses per job with duplicates charged once and live progress, and your first 100 credits are free and never expire, enough to sample the list before you commit.

Read the results

Every row returns one of four verdicts, deliverable, risky, undeliverable, or unknown, each with a reason code, a 0-100 confidence score, and sub-flags for catch-all, disposable, role, and full mailbox, plus the MX provider and SMTP probe detail as evidence.

Act on your store list

Download the cleaned CSV and use it to suppress or delete undeliverable customer accounts under Users, tag the risky ones for a separate segment, and stop mailing dead inboxes. With the native connector, Qualisend writes suppress, archive, and tag results straight back to WooCommerce, no CSV round-trip needed.

Or automate it at signup

Point new signups at Qualisend before they ever save: call the REST API from your checkout or account-creation hook, or wire a no-code Zapier, Make, or n8n flow on the WooCommerce "new customer" or "new order" trigger so every address is verified at the point of capture. The native connector also runs scheduled re-cleans, catching mailboxes that decay after they first join.

What Qualisend flags on every address

Never-mailed invalid addresses that would hard-bounce on your next receipt or shipping notice, including checkout typos your store has never emailed before
Disposable and throwaway domains that shoppers use to grab a first-order discount and abandon within hours
Role addresses like info@, support@, and sales@ that route to a shared queue instead of one buyer
Catch-all domains that accept every address at the server, flagged so you can segment or throttle them instead of trusting them blindly
A 0-100 confidence score plus a machine-readable reason code on every address, so you decide exactly where the cutoff sits for your store

Native connector status

The native WooCommerce connector is live — connect it in Qualisend under Integrations and clean your list without a single CSV. New contacts are verified automatically, and you can re-verify on a schedule.

What to do with each result

Every address comes back with a verdict and sub-flags. Here's the action that keeps your WooCommerce list clean without throwing away contacts you can still reach.

deliverableKeep the customer active and mail transactional and marketing email normally

deliverable + role flagKeep, but tag as a role inbox and route to a shared-mailbox segment rather than personal marketing

risky + catch-all flagTag and segment; throttle sends and watch engagement, since the domain accepts everything without confirming

risky + disposable flagSuppress from marketing and archive; expect it to expire, keep it out of your reputation-sensitive sends

unknownSkip for now and re-verify later; do not delete on a single inconclusive probe

undeliverableSuppress or delete the customer account under Users so no future receipt or campaign is sent to it

WooCommerce verification FAQ

Clean your WooCommerce list in minutes

Start free with 100 credits that never expire — no card required. Connect, verify, and protect your next campaign.

Clean a list for free All integrations