Campaign 1to1 offers automation of marketing campaigns with postal letters.
You can find more information here.
How this Campaign 1to1 + TrueMail integration works
1. Add new record to a Campaign 1to1 account
2. Zapier sends the email to be verified with TrueMail
3. Zapier updates the existing Campaign 1to1 record with TrueMail result code in a custom field
• Campaign 1to1
Campaign 1to1 Triggers