Use Case

Stop Cleaning Your List Manually. Automate It.

Most teams clean their email list once and move on. But lists decay at 2-3% per month — and the problems rebuild faster than you think. Automated list hygiene catches new bad addresses on a schedule, so your list stays clean between every send.

sync Automatic on your schedule.: Choose weekly, biweekly, or monthly. Truelist validates your entire list in the background and flags anything new that's gone bad since the last scan.
link Connected to your ESP.: No more CSV export-import cycles. Truelist syncs directly with Mailchimp, Klaviyo, HubSpot, and more via OAuth — results flow back automatically.
shield Protect your sender reputation.: Catch new bounces, recycled spam traps, and deactivated mailboxes before they trigger ISP penalties. Prevention is always cheaper than recovery.

Developer API

Your API Keys

Key	Last used
tl_live_sk_a1b2...f6g7	2 hours ago

Quick Example

Response

{
  "email": "test@example.com",
  "status": "ok",
  "score": 95
}

The cost of cleaning only when you remember

Manual, one-off validation leaves gaps. Here's what happens in between.

trending_down Gradual bounce rate creep: Your bounce rate climbs slowly between cleanings — 0.5% here, 1% there. By the time you notice, ISPs have already started throttling your sends.
warning Spam trap hits: ISPs recycle abandoned addresses into spam traps. An email that was valid last quarter can become a trap that gets your domain blocklisted — and you won't know until it's too late.
payments Wasted ESP spend: Every month you wait, more dead contacts sit in your ESP billing against your contact tier. On Mailchimp, Klaviyo, or ActiveCampaign, that's money spent on ghosts.
schedule The "I forgot" problem: Manual validation depends on someone remembering to do it. Teams get busy, priorities shift, and months go by. Automation removes human forgetfulness from the equation.

How recurring cleaning works

Connect once: Link your Mailchimp, Klaviyo, HubSpot, or other platform. Truelist syncs your contact lists via OAuth — no CSV exports needed.
Pick a schedule: Set weekly, biweekly, or monthly validation. Truelist runs in the background on schedule — you don't need to remember or do anything.
Get clean list reports: After each scan, Truelist flags or suppresses bad addresses and sends you a summary. Your list is always clean before your next campaign.

What gets caught on every scan

Each recurring scan checks for problems that appeared since the last validation.

check Newly deactivated or bouncing mailboxes

check Recycled spam traps from abandoned addresses

check Domains with expired or changed MX records

check Contacts who changed jobs and lost their work email

check Newly flagged disposable email providers

check Role-based addresses that became undeliverable

Set it up once. Stay clean forever.

Connect your ESP and set your schedule. No credit card required.

Start verifying for free View pricing

Frequently Asked Questions

Can't find the answer you're looking for? Reach out to our support team.

How is this different from one-time list cleaning?: One-time cleaning is a snapshot — it catches bad addresses at that moment. Recurring cleaning runs on a schedule so new problems (bounces, spam traps, deactivated accounts) are caught before your next send, not after.
How often should I run recurring cleaning?: Monthly works for most teams. If you send weekly or have high-churn B2B lists, biweekly is better. Truelist lets you adjust your schedule any time based on what you're seeing in your scan results.
Does recurring cleaning cost extra?: No. Truelist offers flat monthly pricing with unlimited validations. Run recurring cleaning as often as you want — it's included on every plan.
Will it automatically remove contacts from my ESP?: You choose the behavior: automatically suppress invalid contacts, tag them for manual review, or both. You stay in control of what happens to flagged addresses.
What platforms support recurring cleaning?: All Truelist integrations support recurring cleaning: Mailchimp, Klaviyo, HubSpot, ConvertKit, ActiveCampaign, Constant Contact, and more. You can also set up recurring validation via the API.