How to Start and Stop the SMTP Service in Windows

What is SMTP?

SMTP, or Simple Mail Transfer Protocol, is the service that controls how your emails move across networks. By interacting with the Mail Transfer Agent (MTA), it ensures your communications reach their intended address.


Starting or Stopping SMTP Service in Windows

Starting or stopping your SMTP service on a computer running a Windows OS can be done in one of several ways.

Using the Windows Interface

To start or stop SMTP using the Windows interface, follow these steps:

  1. Open Services. This can be done from the Start menu -> Control Panel -> Administrative Tools -> Services
  2. In the details pane, right-click Simple Mail Transfer Protocol (SMTP)
  3. From here, you will be able to select the appropriate service state, turning SMTP on or off as needed

Using the Command Line

To start or stop SMTP using the command line, follow these steps:

  1. Open a Command Prompt. This can be done from the Start menu -> All Programs -> Accessories -> Command Prompt
  2. Within the Command Prompt, enter the following command:
    net {start|stop} smtpsvc
    *Note: To view the complete syntax for this command, at a command prompt, type:
    net {start|stop} /?


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