MAPI and SMTP are both popular email protocols. Router: Understanding 15 Key Comparisons MAPI vs. However, unlike a physical letter that can take days to reach its destination, SMTP transfers emails within a few minutes at most.įinally, an SMTP port is the communication endpoint that takes care of data transfer for email over SMTP as it is transmitted from one server to another through a network. It is comparable to a real-life post office, where a letter goes from the sender to their local post office, then to the receiver’s local post office, and finally to the receiver. Many popular email clients, such as Microsoft Outlook, Google Gmail, Yahoo Mail, and Apple Mail, use SMTP to “push” messages from sender to receiver.Īn SMTP server is an application that provides email sending, receiving, and relaying services to clients within a network. SMTP is the only protocol dedicated to sending emails. Like IMAP, POP, and other email protocols, SMTP provides a set of rules that email accounts and clients follow to streamline the exchange of information. Simple Mail Transfer Protocol (SMTP) is a protocol that enables the transfer of emails from one account to another over the Internet. See More: What Is Remote Desktop Protocol (RDP)? Meaning, Working, Benefits, and Challenges What Is SMTP? It is also responsible for providing a common user interface for recurring tasks and supporting a central “clearing house” that unifies several messaging systems and allows clients to ignore the differences among them. It is useful for managing interactions between messaging applications on the front end and messaging systems on the back end. The MAPI subsystem is contained within the DLL. The APIs are used to build and access various messaging systems and applications, thus supporting the creation of a consistent environment for users and developers. Messaging Application Programming Interface (MAPI) consists of common application programming interfaces (APIs) combined with a dynamic-link library (DLL) component. SMTP defines communication rules among servers and supports various communication modes, such as one message to multiple clients and audio and video transfer.īefore diving into their differences, let’s learn a little more about MAPI and SMTP.
Sources: Microsoft Opens a new window and GeeksforGeeks Opens a new windowĬonversely, Simple Mail Transfer Protocol (SMTP) is a protocol for communication among computers using email addresses. MAPI enables the transfer of messages from cloud storage to local storage, among other functions.
Messaging Application Programming Interface (MAPI) is a proprietary protocol by Microsoft that gives users access to Exchange Server functions such as email and folders like inbox and outbox.
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