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International Delivery

thanks.io supports international delivery for all five mailer types - postcards (4×6, 6×9, 6×11), letters (windowed and windowless), Notecards, Gift Cards, and MagnaCards. You can send internationally directly from the Send Mail Wizard, without any special setup.

Adding an international recipient​

  1. In the Send Mail Wizard, go to the recipients step.
  2. Enter the recipient's address. Include street address, city, region/province, postal code, and the 2-letter ISO country code (e.g., CA for Canada, GB for the United Kingdom, AU for Australia).
  3. If uploading a CSV, include a country column with the 2-letter ISO code for each international row.
  4. Confirm the address looks correct in the recipient preview before placing the order.

Postage​

International sends automatically use the equivalent of First Class postage. Standard postage is not available for international recipients. Per-piece pricing for international delivery is higher than domestic.

Delivery times​

International delivery is longer than domestic and varies by destination country, local postal infrastructure, and customs processing. Do not plan time-sensitive campaigns around specific international delivery dates.

Tips & best practices​

  • Always include the 2-letter ISO country code. Omitting it may cause delivery failures.
  • Include the full postal code in the destination country's format (e.g., Canadian postal codes use M5V 2T6 format).
  • For countries where the address format differs significantly from the US format, double-check your CSV column mapping.

Limits & gotchas​

  • Supported regions vary. If a country cannot be accepted, you will see an error during address validation.
  • Address Verification behavior may vary for non-US addresses.