Clean lists, exactly where you send from
Connect your ESP or CRM once. Pull any list, verify it, and push the clean segments straight back — no CSV exports, no column mapping, no copy-paste.
Works with the tools you already use
Every integration supports two-way sync: import lists for cleaning, export verified segments back.
- Mc
Mailchimp
Email Marketing
Sync audiences and clean them before every campaign.
- Hs
HubSpot
CRM
Verify contacts as they enter your CRM pipelines.
- Za
Zapier
Automation
Connect verification to 6,000+ apps without code.
- Ac
ActiveCampaign
Email Marketing
Keep automations firing only at real inboxes.
- Kl
Klaviyo
E-commerce
Protect your e-commerce flows from fake signups.
- Br
Brevo
Email Marketing
Import, verify, and push clean lists back to Brevo.
- Sf
Salesforce
CRM
Enterprise-grade contact hygiene inside Salesforce.
- Pd
Pipedrive
CRM
Score and verify leads as deals move through stages.
- Ck
ConvertKit
Creators
Keep creator audiences clean and engaged.
- Gr
GetResponse
Email Marketing
Automated list hygiene on every import.
- Mo
Moosend
Email Marketing
Verify subscribers before they hit your segments.
- Cm
Campaign Monitor
Email Marketing
Clean lists synced directly to your campaigns.
Don't see your tool?
Zapier connects MailTester to 6,000+ apps without code, and the REST API covers everything else. Most teams are syncing within an afternoon.
Two clicks from your ESP to a clean list.
Connect your account, pick a list, and watch the dead weight disappear.