Comments on: IIS 6 SMTP server not sending emails http://itknowledgeexchange.techtarget.com/itanswers/iis-6-smtp-server-not-sending-emails/ Sat, 25 May 2013 16:32:12 +0000 hourly 1 By: mshen http://itknowledgeexchange.techtarget.com/itanswers/iis-6-smtp-server-not-sending-emails/#comment-69704 mshen Fri, 30 Oct 2009 00:29:02 +0000 #comment-69704 I’m assuming this is an ASP or ASP.NET application that is using SMTP to send an email. You need to relay that off of your email server with the correct port settings. I’m not sure if it is really a protocol error, you should also check your firewall settings.

Please reply back with more information about what is sending the email and what is recieving it. The programming language will help too.

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