Keep your ActiveCampaign contacts clean and deliverable
ActiveCampaign marks a contact Bounced the moment it hard-bounces and stops sending to it, so it reacts fast to a bad address - 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: export your contacts, verify every address, and act on the results before junk ever reaches a send. Here's the workflow that works today, plus the API and no-code options.
Connect ActiveCampaign and clean it in place
Connect ActiveCampaign with an API key and Qualisend verifies the lists you already have - right inside ActiveCampaign, 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 ActiveCampaignWhat ActiveCampaign cleans for you
ActiveCampaign's native hygiene runs on its contact list statuses. The moment an address hard-bounces, the contact is given the Bounced status and receives no further campaigns or automation emails; a contact that soft-bounces three times in a row across separate campaigns is then treated as a hard bounce and marked Bounced too. Suppression is automatic but it isn't deletion - a Bounced contact stays in your account, and ActiveCampaign simply stops sending to it. For addresses ActiveCampaign has actually mailed, that's reliable automatic hygiene.
What it can't catch
The catch is that every one of those mechanisms is reactive - it needs a send and a bounce to fire. Never-mailed invalids from imports and signup forms, disposable addresses accepted at signup, role addresses, and decayed mailboxes 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 list is the sharpest case: it arrives with its bounce history stripped, so addresses that were already failing on another platform look brand new to ActiveCampaign.
Why a clean ActiveCampaign list matters
On ActiveCampaign the stakes turn on a billing rule that changed in late 2025. For accounts created on or after 3 November 2025, every contact counts toward your plan limit regardless of status - a Bounced or unsubscribed contact still costs you, and only deleting dead addresses takes them off the billable total. For accounts created on or before 2 November 2025, only active contacts count, so bounced and unsubscribed contacts are already excluded. Either way a dead address is more than an invoice line: your first campaign to an unverified list is where Gmail and Yahoo - under their 2024 sender rules - and ActiveCampaign's own deliverability monitoring form their first impression of your domain. Cleaning before the send protects both your bill and the inbox placement of the campaigns that actually convert.
Prefer CSV or the API? Here's the manual path
The native connector is the fastest route, but the CSV loop works on any ActiveCampaign plan: export from ActiveCampaign, verify in Qualisend, and act on the results.
Export your contacts from ActiveCampaign
Open Contacts, filter to the list you want to clean (or build a segment first for a targeted maintenance clean), and export it to CSV.
Verify the file in Qualisend
Upload the CSV to Qualisend bulk cleaning - up to 1,000,000 addresses, duplicates charged once - or paste addresses directly. The free plan's 100 credits cover a first sample.
Read the results
Every address returns deliverable, risky, undeliverable, or unknown with a reason code and sub-flags (catch-all, disposable, role, full mailbox), plus the MX provider and probe detail as evidence. Download the cleaned CSV.
Retire the undeliverables in ActiveCampaign
ActiveCampaign has no “import to suppressed” list, so you act on the contact directly: filter your results to undeliverable, then unsubscribe those contacts (which stops all campaigns and automations) or delete them. On accounts created on or after 3 November 2025, where every contact is billable regardless of status, deleting is what actually removes them from your count - check your account's billing date before you decide.
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 ActiveCampaign contact is checked before it's ever added - 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 push the contact to Bounced
- Disposable / throwaway domains built to expire
- Role addresses (info@, support@) that skew engagement-judged automations
- Catch-all domains, flagged so you can move them to a dedicated list and throttle
- A 0-100 confidence score and machine-readable reason code for every address
The native ActiveCampaign 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 ActiveCampaign list clean without throwing away contacts you can still reach.
deliverableKeep sending as normal.deliverable + role flagKeep for transactional content; exclude from engagement-judged automations.risky + catch-all flagMove to a dedicated list and throttle your sends.risky + disposable flagUnsubscribe or delete - the inbox was built to expire.unknownKeep active and re-verify next clean - usually greylisting or rate-limiting, not a verdict on the mailbox.undeliverableUnsubscribe or delete (delete to take it off a newer account's billable count); don't wait for the bounce to prove it.Related reading
The full step-by-step: export, verify, and unsubscribe or delete the dead addresses.
Cleaning is half of deliverability - authenticate your sending domain too.
Verify at signup so junk never enters your contacts.
How fast a dirty list compounds into a deliverability problem.
The 2024 bounce and spam-rate thresholds your ActiveCampaign sends must clear.
ActiveCampaign verification FAQ
Clean your ActiveCampaign list in minutes
Start free with 100 credits that never expire - no card required. Connect, verify, and protect your next campaign.