Custom Gateway is a system for creating artwork and managing / distributing orders for personalized and print on demand products.
You can find more information here.
How this Custom Gateway OMS + TrueMail integration works
1. Add new record to a Custom Gateway OMS account
2. Zapier sends the email to be verified with TrueMail
3. Zapier updates the existing Custom Gateway OMS record with TrueMail result code in a custom field
• Custom Gateway OMS
Custom Gateway OMS Triggers
Creates a new order.