Email Append API
Give us a person's name and their employer's domain; we derive the address from the patterns that domain actually uses, then verify the mailbox with our own SMTP engine. No resold contact lists.
Fill in the missing email
Match records to verified, deliverable email addresses
Name + company domain
The two fields you already have on a lead — no street address needed.
Deliverability checked
Every appended email is validated before it's returned.
Public-source only
Platform-safe, non-FCRA data — no social-platform scraping.
Bulk & API
Append in bulk via CSV or one record at a time via API.
Email Append use cases
Common workflows teams run with this data.
Lead enrichment
Turn partial records into reachable contacts for sales outreach.
- Fill missing emails
- Improve match rate
- Enable outreach
CRM completion
Backfill missing emails across your customer database.
- Complete records
- Cut manual work
- Improve data
Reactivation campaigns
Recover contactability for dormant or incomplete accounts.
- Re-engage users
- Recover contacts
- Lift revenue
Start using Email Append today
One API, universal credits, and 200 free credits a month. Live in about five minutes.