SMTP: 550 Huh? Extended HELO (EHLO) Not Supported (100352)
The information in this article applies to:
- Microsoft Mail Gateway to SMTP 3.0
This article was previously published under Q100352 SYMPTOMS
Version 3.0 of Microsoft Mail Gateway to SMTP does not accept the extended
hello greeting (EHLO). If a host contacts the SMTP gateway computer with
"EHLO" instead of "HELO," the gateway replies with a "550 Huh?" and
promptly closes the connection so the host can't send the standard "HELO."
STATUS
Microsoft has confirmed this to be problem in version 3.0 of Microsoft Mail
Gateway to SMTP. This problem was corrected in version 3.0.2 of
SMTPGATE.EXE. If you do not have version 3.0.2 (or later), you can obtain
the latest version from the Microsoft Software Library (MSL). Download
SMTPGW.EXE (S14223), a self-extracting file, from any of the following
services:
- Microsoft's World Wide Web Site on the Internet
On the www.microsoft.com home page, click the Support icon.
Click Knowledge Base, and select the product.
Enter kbfile SMTPGW.EXE, and click GO!
Open the article, and click the button to download the file.
- Internet (anonymous FTP)
ftp ftp.microsoft.com
Change to the Softlib/Mslfiles folder.
Get SMTPGW.EXE
- The Microsoft Network
On the Edit menu, click Go To, and then click Other Location.
Type "mssupport" (without the quotation marks).
Double-click the MS Software Library icon.
Find the appropriate product area.
Locate and Download SMTPGW.EXE.
For additional information about downloading, please see the following
article in the Microsoft Knowledge Base:
119591 How to Obtain Microsoft Support Files from Online Services
| Modification Type: | Major | Last Reviewed: | 10/29/1999 |
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| Keywords: | KB100352 |
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