Hello all, I have an exchange 5.5 infrastructure that forwards all outbound e-mail to a seperate server running IIS 5.0 (for GFI Mail Essentials and Mail Security). My question is, in IIS under the 'Default SMTP Virtual Server' there is a sub category called 'Current Sessions.' In this category, there are always multiple connections that show various 'Connected Times'. I understand that these are connections from remote mail servers that are delivering mail, but why do some of these remain connected for Extended period of time? As an example, there are connection times ranging from 6 seconds up to 600 seconds... Why? I have this service locked down to prevent relaying, so I am sure that we are not an open relay. I have included a screen shot of this issue for you to look at.