We recently made some major changes in our network. We implemented Exchange 5.5 sp3 and removed our old NT mail system. This week we moved our intranet from a NT 4 server running IIS 4.0 to a Win 2k box running IIS 5.0. We are having issues with SMTP service running on this new server. I configured the SMTP properties on the IIS server to use Smart host and pointed it to our FQDN of the Exchange server. Now when people visit the site and fill out web based asp forms and hit send they just sit in the message que until they are moved to bad mail. Any help would be greatly appreciated. Thanks