How To Test SMTP Services Manually in Windows Server 2003

For a Microsoft Windows 2000 version of this article, see
286421 .

Summary

This article describes how to test the Simple Mail Transfer Protocol (SMTP) service for any system.

To test the SMTP service, follow these steps:

On a computer running Windows Server 2003, type
Telnet at a command prompt, and then press ENTER.
At the telnet prompt, type set LocalEcho, press ENTER, and then type open <machinename> 25, and then press ENTER.

The output resembles the following:
```
220 computername.microsoft.com ESMTP Server (Microsoft Exchange Internet Mail Service 5.5.2651.58) ready
```
Type helo me, and then press ENTER.

The output resembles the following:
```
250 OK
```
Type mail from:email@domain.com, and then press ENTER.

The output resembles the following:
```
250 OK - mail from <email@domain.com>
```
Type rcpt to:youremail@yourdomain.com, and then press ENTER.

The output resembles the following:
```
250 OK - Recipient <youremail@yourdomain.com>
```
Type Data, and then press ENTER.

The output resembles the following:
```
354 Send data.  End with CRLF.CRLF
```
Type Subject:This is a test, and then press ENTER two times.
Type Testing, and then press ENTER.
Press ENTER, type a period (.), and then press ENTER.

The output resembles the following:
```
250 OK
```
Type quit, and then press ENTER.
The output resembles the following:
```
221 Closing Port / Mail queued for delivery
```

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