Put verified contacts into every Outreach sequence.
Cleanlist verifies and enriches Outreach prospects so every sequence reaches a real inbox and a real direct dial. Its 25+ provider waterfall verifies 98% of work emails and finds 85% direct dials, and it keeps cascading through providers where a single source would return nothing. Every prospect syncs back with the firmographic and AI fields your sequences need to personalize.
Every field Cleanlist writes into Outreach
Cleanlist writes into Outreach. It does not read your Outreach activity back, and it does not send email. The sending stays entirely inside Outreach.
| Cleanlist field | Direction | Outreach object | Outreach field |
|---|---|---|---|
| Verified work email | Prospect | ||
| Direct dial & mobile | Prospect | Work phone, Mobile phone | |
| Job title & seniority | Prospect | Title | |
| Company & domain | Account | Name, Domain | |
| Industry | Account | Industry | |
| Employee count | Account | Number of employees | |
| LinkedIn URL | Prospect | LinkedIn URL | |
| ICP score | Prospect | Custom field, custom1 to custom150custom | |
| Custom AI columns | Prospect | Custom fields, custom1 to custom150custom |
Objects Prospects, Accounts
custom A field you create once in Outreach and pick during mapping. Everything else is stock.
Overwrite Empty fields only by default. Overwrite, append or skip is set per field.
What you can do with Cleanlist and Outreach
Verified contact data, enriched across 25+ sources, flowing into the tool your team already lives in.
Verify before the sequence
Check every prospect email before it enters a sequence, so invalid and risky addresses never cost you sender reputation.
Fill missing emails & phones
Complete imported prospect lists with verified work emails and direct dials before reps start their cadence.
Power personalization
Add company size, industry, and custom AI fields so your sequence variables actually have something to say.
What reaches Outreach has already been verified.
Each record walks a 25+ provider waterfall in cost order. Addresses are checked at the syntax, domain and mailbox level before anything is written, and catch-all or risky results are flagged rather than passed through quietly.
How it works
Authorize once, choose what to enrich, and the results land in the fields above.
- 01
Connect Outreach
Authorize Cleanlist with OAuth, granting only the permissions needed to read and update prospects.
- 02
Choose what to enrich
Enrich prospects on import, or target specific tags and sequences to control credit usage.
- 03
Sync verified data
Cleanlist writes verified emails, direct dials, and personalization fields back to Outreach prospects.
Outreach integration FAQ
How does this protect deliverability?
Cleanlist verifies each address before it reaches a sequence, catching invalid and catch-all domains that would otherwise bounce and hurt your sender reputation.
Can I enrich prospects already in Outreach?
Yes. Enrich existing prospects in any sequence or across your whole database, and records update in place without disrupting active cadences.
What data gets added?
Verified work emails, direct dials, job title and seniority, company firmographics, and any custom AI columns you configure.
How accurate are the emails and phone numbers?
Cleanlist's 25+ provider waterfall is built to a 98% verified work email and 85% direct dial spec, with triple verification (syntax, domain, mailbox) on every address. That verification step is what keeps Outreach sequences out of the bounce folder.
Explore other integrations
Cleanlist ships six connections: three CRMs it syncs both ways with, and three sending tools it writes into.
Connect Outreach in minutes
Fourteen days on Scale, with 250 credits and three seats. Search costs none of them, and a lookup that finds nothing costs nothing.
Every feature except the public API and MCP. The Free plan stays available afterwards at 30 credits a month.