Does Qualisend have a native Dotdigital integration?

Yes. The native Dotdigital connector is live: you connect Dotdigital directly in Qualisend and clean your address books in place, verifying contacts and writing the results back as suppressions, archives, or tags, with real-time verification of new contacts and scheduled re-cleans. It's the fastest path. The CSV loop and the REST API remain available as the manual fallback, and everything works with any Dotdigital plan.

How many addresses can I verify at once?

Bulk cleaning handles up to 1,000,000 addresses per job with live progress, and duplicates are charged once. The free plan includes 100 one-time credits that never expire, enough for a first sample before you commit.

Can I verify addresses before they enter Dotdigital?

Yes, and it's the highest-leverage option. Verify at signup through the REST API, or a Zapier, Make, or n8n flow, so typos and disposable addresses never enter an address book, never reach a send, and never count toward your contact total in the first place.

Should I suppress or delete cleaned contacts?

Suppress by default. Importing your undeliverables into Dotdigital's Suppressed contacts stops every send while keeping the record, which prevents a future import from silently re-adding a known-bad address. Delete only when you specifically need to take a dead contact off the count your plan is sized on, and keep the cleaned CSV as your record either way.

Will cleaning my list lower my Dotdigital bill?

It can. Dotdigital plans are sized by the number of contacts you store, so pruning the undeliverable, disposable, and duplicate addresses you'll never reach again trims the total your tier is based on and can move you under a threshold. The saving comes from the dead contacts Dotdigital hasn't mailed and can't judge; its automatic suppression only touches addresses that have already bounced or complained on a real send.

Native one-click sync — live

Keep your Dotdigital contacts clean and deliverable

Dotdigital suppresses an address the moment it hard-bounces and stops mailing it, so it reacts fast to a bad contact, but it can't judge an address it has never sent to, and those never-mailed invalids from imports and signup forms are what quietly erode your deliverability. Qualisend closes that gap: connect Dotdigital directly and clean your address books in place, or export to CSV and reimport. The native connector is live, so the fastest path is verify-and-write-back inside Qualisend, with the REST API and no-code flows for verifying new contacts at the point of capture.

Clean a list for free Read the Dotdigital guide

Native connector

Connect Dotdigital and clean it in place

Connect Dotdigital with an API key and Qualisend verifies the lists you already have — right inside Dotdigital, no export. Dead and risky addresses are suppressed or archived for you, every new subscriber is checked in real time, and you can re-verify on a schedule so the list never drifts back to dirty.

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 Dotdigital

Dotdigital handles

What Dotdigital cleans for you

Dotdigital's native hygiene runs on contact bounce status and the global Suppressed contacts list. When an address hard-bounces, Dotdigital sets its bounce status and suppresses it, so it drops out of every future campaign and program send, and repeated soft bounces escalate the same way. Unsubscribes and spam complaints routed back through the feedback loop are added to that same suppression list automatically. For addresses Dotdigital has actually mailed, that's reliable, automatic hygiene.

The gap it leaves

What it can't catch

The catch is that every one of those mechanisms is reactive: it needs a real send and a bounce or complaint to fire. Never-mailed invalids from imports and signup forms, disposable addresses accepted at capture, role addresses, decayed mailboxes, and catch-all domains all look active until your first campaign proves otherwise, which is exactly when a mailbox provider forms its first impression of your domain. An imported address book is the sharpest case: it arrives with its bounce history stripped, so addresses that were already failing on another platform look brand new to Dotdigital and sit unsuppressed in your contact count until a send finally exposes them.

Why a clean Dotdigital list matters

On Dotdigital the stakes are double, because plans are sized by the number of contacts you store, so every dead address is both an invoice line and a drag on deliverability. Undeliverable and disposable contacts pad the count your tier is based on while pulling down the engagement Dotdigital's own deliverability monitoring watches. And your first campaign to an unverified address book is where Gmail and Yahoo, under their 2024 bulk-sender rules, judge you on bounce and complaint rates, thresholds a list full of never-mailed invalids will blow straight through. Cleaning before the send does both jobs at once: it trims the count you're billed on and protects the inbox placement of the campaigns that actually convert.

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

If you'd rather skip the CSV round-trip entirely, the live native connector runs this whole flow in place, verifying your address books and writing the results back to Dotdigital as suppressions; the manual steps below are the fallback when you prefer to work from a file.

Export your contacts from Dotdigital

In Dotdigital, go to Contacts, open the address book or segment you want to clean, and export it to a CSV. Building a segment first gives you a targeted maintenance clean rather than the whole book.

Verify the file in Qualisend

Upload the CSV to Qualisend bulk cleaning, up to 1,000,000 addresses per job with duplicates charged once and live progress, or paste a sample directly. The free plan's 100 one-time credits, which never expire, cover an initial spot-check.

Read the results

Every address returns deliverable, risky, undeliverable, or unknown with a machine-readable reason code, a 0–100 confidence score, and sub-flags (catch-all, disposable, role, full mailbox), plus the MX provider and SMTP probe detail as evidence. Download the cleaned CSV.

Suppress the undeliverables in Dotdigital

Filter your results to undeliverable, then import that list into Dotdigital's Suppressed contacts to bulk-suppress them in one pass, which stops every campaign and program send without deleting the records. Delete instead only when trimming the billable contact count is the goal; keep the cleaned CSV as the record that stops a later import from silently re-adding them.

Or automate it at signup

Prefer to keep junk out from the start? Verify at the point of capture with the Qualisend REST API (scoped keys, rate limits, webhooks), or wire a no-code flow through Zapier, Make, or n8n so a new Dotdigital contact is checked before it's ever written to an address book, so typos and disposable addresses never reach a send or your contact count.

What Qualisend flags on every address

Never-mailed invalid addresses that would hard-bounce on your next campaign and land the contact in Dotdigital's Suppressed list
Disposable / throwaway domains accepted at signup that were built to expire
Role addresses (info@, support@) that skew engagement-scored programs
Catch-all domains, flagged so you can move them to a dedicated segment and throttle
A 0–100 confidence score and machine-readable reason code for every address

Native connector status

The native Dotdigital 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 Dotdigital list clean without throwing away contacts you can still reach.

deliverableKeep mailing as normal.

deliverable + role flagKeep for transactional content; exclude from engagement-scored programs.

risky + catch-all flagMove to a dedicated segment and throttle your sends.

risky + disposable flagSuppress — the inbox was built to expire.

unknownKeep active and re-verify next clean — usually greylisting or rate-limiting, not a verdict on the mailbox.

undeliverableSuppress via import to the Suppressed contacts list (or delete to take it off your billable count); don't wait for the bounce to prove it.

Dotdigital verification FAQ

Clean your Dotdigital list in minutes

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