Northern Trail Outfitters has a customer login page on their website and wants to use...

The best solution for fast, transactional emails like password resets is the Transactional Messaging API.

It is optimized for speed (near real-time delivery).

It supports notification of status via response payloads and optional callbacks.

Triggered Send Definitions are older and not as real-time or robust. Journey-based API entry methods (C and D) introduce unnecessary delays for critical transactional messaging.

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Exact Extracts from Salesforce Documentation:

Source: Salesforce Developer Guide – Transactional Messaging API Overview

→ "Transactional Messaging API provides fast, secure sending of transactional messages like order confirmations or password resets, with near real-time delivery."

Source: Salesforce Help – Transactional Messaging vs. Triggered Sends

→ "Transactional Messaging APIs are designed to deliver messages as quickly as possible, whereas classic Triggered Sends and API Event Journeys are better suited for marketing campaigns."

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