> For the complete documentation index, see [llms.txt](https://help.lob.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.lob.com/print-and-mail/building-a-mail-strategy/international-mail.md). # International mail {% hint style="info" %} This page is regarding mail that **originates in the US** and is mailed abroad by the USPS. If you have further questions about sending mail internationally, [contact us](mailto:support@lob.com). {% endhint %} ## General considerations ### **Mail formats** * [Postcards](https://docs.lob.com/#tag/Postcards) and [letters](https://docs.lob.com/#tag/Letters) created using the individual mail creation endpoints can be sent internationally, Campaigns UI (non-custom formats) and Campaigns API (non-custom formats); see below for [format-specific considerations](#format-specific-considerations-2) * No checks can be sent (or cashed) abroad ### **Mailing class** * Only USPS First Class Mail is available for international delivery * Expect international mail to take an additional 5-7 business days * Registered Mail is not supported internationally * Certified Mail is not supported internationally * Standard class (Bulk/Marketing Mail), Nonprofit stamps, or First Class Presort are not permitted in international mail and will be returned to sender ### **Destination address** * Lob follows [USPS standards](https://pe.usps.com/text/imm/immc1_008.htm) for sending international mail * International address data is available in over 240 countries, and the complete list of countries and territories can be found in our [global address coverage](https://www.lob.com/global-address-coverage) page * To pass country codes in the API, use the specific two-letter convention identified by the [ISO 3166-1 alpha-2](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2) convention (e.g., ‘US’ for United States of America, or ‘CA’ for Canada) * Lob follows USPS’s guidance on [international service disruptions ](https://about.usps.com/newsroom/service-alerts/international/welcome.htm)that affect First Class Mail delivery abroad * Our Print & Mail API will be periodically updated to exclude country-specific mail delivery suspensions. If you attempt to send mail to a suspended destination, you will receive a `422` error. * We will lift service restrictions in accordance with any USPS-provided guidance. * Temporary service disruptions (due to conditions like wildfires or COVID-19 for example) are subject to change. ### **Non-Latin/non-standard character support** **For the address box:** * Name and company will remain as-is within their respective character sets * If our Address Verification can validate and translate the address portion, it will return the address in English * All international mail will not receive CASS processing beyond US borders by default, so be sure to have accurate addresses if sending with your respective character set **For the content of the HTML body:** * Must be using a typeface (font) that supports the character set * Must include meta element with utf-8 charset: \ `` * Example: 
<html>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<body>
<b>Chinese characters in UTF-8</b><br/>
Simplified characters: 简体中文网页<br/>
Traditional characters: 繁體中文網頁<br/>
Korean characters: 빠른 갈색 여우가 게으른 개를 뛰어 넘다<br/>
Arabic characters: الثعلب البني السريع يقفز فوق الكلب <br/>
Vietnamese characters: Ăă
</body>
</html>
### **Return address** * US-based return addresses are **required** on all outbound international mail, regardless of the mail service used * All outbound mail pieces (“`to`” address is international) must bear a complete return address in the country of origin (e.g. where you pay postage) * Since Lob mail is originated in the US, the return **must** have a US-based address ### **Mail tracking** * For international mailings originated in the US, [tracking events](/print-and-mail/getting-data-and-results/tracking-your-mail.md#tracking-events-2) will not appear and tracking data cannot be accessed via the USPS’s website beyond the final scan in the US, "International Exit" * Note: USPS does not appear to scan the majority of their international mail, which means this "International Exit" event is unreliable and thus infrequently surfaced * On rare occasion, international mailings may receive an "In Transit" or "Process for Delivery" scan, indicating that the mail piece has been processed at the entry/origin facility outside of the US * However, because delivery occurs in a foreign country outside the control of the USPS, international mailings do not receive scans beyond that, and cannot be tracked through the mailstream * In short, Lob is unable to provide reliable scans for international mail, especially beyond US borders ## Format-specific considerations ### Postcards * [Per USPS](https://pe.usps.com/text/dmm100/mailing-international.htm), only 4x6" size postcards can be sent internationally via First Class Mail ### Letters * File limit is 6 sheets single-sided or 12 pages double-sided (totaling 6 sheets) * PDFs that surpass the file limit will error * HTML that renders more pages than the file limit will be trimmed ### Checks * Checks cannot be sent internationally, and the API will return an error if `address_country` is not the US. ### Campaigns UI specific considerations * Start your campaign and choose "Includes International" on the first step. This tells the system you want to follow international mailing rules. * The Campaigns UI will then guide you through the USPS requirements. This ensures your maipiece is properly formatted and is set up for successful delivery.