Which of the following is NOT an example of a remittance transfer?

Mailing a check abroad is not classified as a remittance transfer because it does not fit the typical characteristics of remittance services, which usually involve electronic or cash-based transfers meant for sending money from one individual to another, often across national boundaries. Remittance transfers typically enable quick, straightforward transactions to send funds directly to recipients in another country.

In contrast, the other options represent mechanisms specifically designed for transferring funds directly in the context of remittances. Cash-to-cash transfers facilitate immediate access to funds without requiring a bank, which is essential for many who are unbanked. International wire transfers are a well-established method for sending significant amounts of money securely and quickly across borders. Likewise, international ACH transactions allow for the electronic transfer of funds between bank accounts, which is a key feature of modern remittance services. These methods are all integral to the remittance process, emphasizing the ease and speed of fund transfers to individuals in different countries.