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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 Send Mail, without any special setup.

Adding an international recipient​

  1. In Send Mail, go to the Select Recipients step and click Add Recipients.
  2. Choose Manually Enter Address and enter the recipient's address: street address, city, region/province, postal code, and country.
  3. If you choose Upload a CSV, include a country column with the 2-letter ISO country code for each international row (e.g., CA for Canada, GB for the United Kingdom, AU for Australia), and match it to the Country field when you match your columns.
  4. Confirm the address looks correct before placing the order. For a CSV, check the verified rows shown before you click Use These Recipients.

On Review & Confirm, international recipients appear on their own line of the cost breakdown, with a note that international delivery can take longer.

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.
  • An address with no country is treated as being in your Default Recipient Country (US unless you change it). If most of your recipients are outside the US, change it under Settings → Mail Preferences, in the Postcard Preferences card.

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.