Article ID: 222885 - View products that this article applies to.
This article was previously published under Q222885
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If the Simple Mail Transfer Protocol (SMTP) service (Smtpsvc.dll) connects to a remote server, but the remote server ends the connection before sending a 220 response, the SMTP service may continuously attempt to reconnect to the remote server instead of attempting to send the message at a later time. While the SMTP service attempts to reconnect, you are able to send other SMTP messages successfully.
To resolve this problem, obtain the latest service pack for Microsoft Windows NT version 4.0. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/152734/EN-US/ )How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed that this is a problem in Microsoft Commercial Internet System version 2.0.
This problem was first corrected in Windows NT 4.0 Service Pack 5.