Email Integration
What it is
The Email Integration lets you trigger a thanks.io mail send by sending a specially formatted email to a dedicated thanks.io address. No API or code required - any system that can send email can trigger a send.
How to use it
- Compose an email to send@thanks.io from the email address you used to sign up. If you need to send from a different address, contact support to have it added to your account.
- Put the recipient's name, street, city, state, and zip in the Subject line, separated by commas. For example:
John Smith, 123 Main St, Springfield, IL, 62701 - Enter your postcard handwritten message content in the body. Delete any email signatures you have set up.
Sending options
Default card
Emailed sends use your default 4x6 postcard design unless you name a specific one. To set it, go to Creatives in the sidebar, open the menu on a 4x6 postcard creative, and choose Make default. Its front becomes the design your email sends use. See Creative defaults and sharing.
Send a specific card
Every postcard front has its own Card ID Email address, which looks like send+12345@thanks.io. To find it, open the creative in Creatives (click its card) and look under the front on the Front step: it shows the address and the image template ID. Use this address in the To: field instead of the generic send@thanks.io. You can save these card-specific addresses to your email address book for easy reuse. The mailer size follows the design: the address of a 6x9 postcard creative's front sends a 6x9 postcard, and a 4x6 creative's sends a 4x6.
Tips & best practices
- Send a test email first and confirm the order appears before automating in your CRM.
- Turn on Test Mode under Settings → API Access while testing so no real mail ships.
Limits & gotchas
- Formatting errors cause sends to fail silently or be rejected.
- Email processing is near-real-time, not instantaneous.