Does Qualisend have a native Help Scout integration?

Yes. The native Help Scout connector is live: connect your account in Qualisend and clean your customer list in place — verify every contact, write the results back as tags, and re-check each new customer in real time on a schedule you set. The CSV export-and-verify loop and the REST API are still there as a manual path if you'd rather not connect the account.

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.

Can I verify addresses before they enter Help Scout?

Yes, and it's the highest-leverage option. Verify at the point of capture through the REST API (or a Zapier/Make/n8n flow) so a typo or disposable address on a Beacon form or new conversation is caught before it ever becomes a customer record you'll reply to.

Will cleaning my list lower my Help Scout bill?

No — Help Scout charges per user seat, not per contact, so dead addresses don't inflate your invoice the way they do on a contact-billed ESP. The payoff here is different: fewer bounced replies, fewer reopened tickets, and a healthier sending domain, which is what protects your SLAs and your inbox placement.

Should I tag or delete a bad customer in Help Scout?

Tag first. Tagging (or setting a customer property) flags the address as undeliverable while keeping the conversation history an agent may need, and a saved View on that tag keeps flagged contacts easy to exclude. Delete only when an address is confirmed disposable or invalid and you want the record gone — but note a future import can silently re-add a deleted address, which is why verifying at capture is the durable fix.

Native one-click sync — live

Keep your Help Scout customers clean and deliverable

Help Scout posts a delivery-failure notice right on the conversation when a reply bounces, but that is the only hygiene signal it gives you, and it fires only after a customer has already missed your response. Qualisend closes that gap: connect Help Scout directly and clean your customer list in place — verify every contact, write the results back as tags, and check each new customer in real time — or run the CSV loop and the REST API if you would rather work by hand. The native connector is the fastest path; the export-and-verify workflow below is the manual one.

Clean a list for free

Native connector

Connect Help Scout and clean it in place

Connect Help Scout and Qualisend verifies your support contacts in place — no export. Clean the contacts you already have, flag the undeliverable ones, and check every new contact in real time so your replies and notifications reach the customer.

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 Help Scout

Help Scout handles

What Help Scout cleans for you

Help Scout's built-in hygiene is inbox-level, not list-level. When a reply cannot be delivered, Help Scout posts a delivery-failure notice directly on that conversation thread so the agent knows the message bounced, and it tracks the delivery status of outgoing email. But there is no global suppression list and no bounced or cleaned status on the customer record: each conversation stands alone, and the same bad address will accept a new reply on the next ticket without warning. For a support desk that is by design, since Help Scout is built to deliver individual replies rather than maintain a marketing-grade clean list.

The gap it leaves

What it can't catch

That leaves everything a send-and-bounce model cannot see. Never-mailed invalids from CSV imports and Beacon signups, disposable addresses, role addresses like info@ and support@, catch-all domains, and mailboxes that have quietly decayed since the last ticket all look fine until an agent hits reply, which is exactly the moment a customer is waiting on an answer. Because Help Scout only reacts to a specific failed send, an imported customer list arrives with its bounce history stripped, so addresses that were already dead on another system look brand new. Nothing flags them until a reply bounces and the SLA clock has already run out.

Why a clean Help Scout list matters

Help Scout bills per user seat, not per contact, so a dead address never shows up on your invoice, which is exactly why it is easy to ignore until it costs you a customer. The real price is missed SLAs: a ticket reply or notification that bounces means a reopened conversation, a frustrated customer, and a support metric that quietly slips. It also compounds on your sending domain, because every bounced or complained-about support email drags down the reputation of the address you reply from, and Gmail and Yahoo's 2024 sender rules judge that domain on its bounce and complaint rates. Keeping the customer list clean protects both your response times and the inbox placement of every reply you send.

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

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

Export your customers from Help Scout

In Help Scout, open Manage > Customers to review your contacts. Help Scout has no one-click export-all button, so pull the full list with a Reports CSV export or the Mailbox API's GET /v2/customers endpoint.

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 SMTP probe detail as evidence. Download the cleaned CSV.

Tag and remove the undeliverables in Help Scout

Filter your results to undeliverable, then tag those customers (or set a customer property) and build a saved View so they are easy to keep out of any outreach; delete the confirmed-dead records if you want them gone. With the native connector, Qualisend writes these tags back for you and re-checks every new customer automatically.

Or automate it at signup

Keep junk out at the source: verify with the Qualisend REST API (scoped keys, rate limits, webhooks) the moment a customer is created — from a Beacon contact form, a new conversation, or an import — or wire a no-code flow through Zapier, Make, or n8n so every new Help Scout customer is checked before an agent ever hits reply.

What Qualisend flags on every address

Never-mailed invalid addresses that would bounce the next time an agent hits reply
Disposable / throwaway domains that won't be there when the customer follows up
Role addresses like info@ and support@ that route to a shared inbox instead of a person
Catch-all domains, flagged so you can tag and watch them instead of trusting the accept
A 0–100 confidence score and machine-readable reason code for every address

Native connector status

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

deliverableLeave the contact active — replies and notifications will land.

deliverable + role flagKeep for ticket replies; tag the role address so it isn't pulled into outreach that expects a person.

risky + catch-all flagTag as catch-all and add it to a saved View to watch — the domain accepts everything, so a reply may still bounce.

risky + disposable flagDelete or tag out — the mailbox was built to expire and won't be there when the customer replies.

unknownLeave active and re-verify on the next scheduled clean — usually greylisting, not a verdict on the mailbox.

undeliverableTag undeliverable and keep it out of outreach (delete the customer if you want the record gone); don't wait for the next reply to bounce.

Help Scout verification FAQ

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