ALL, We have the application that sends an email to particular user, and its using windows credentials to send email for example 'user123' we have exchange server 2010 app doesnt send email unless i dont add machine ip address(where we have application running) in server configuration--> hub transport --> smtp relay properties-->under network tab But the problem is application runs on more than 200 machines with differ ip address range...how can i allow application to send email.. i want to do configure something like.. allowing user 'user123' to send an email from this applicaiton Any suggestions plz TIA

Doesnt the application have a backend where you can specify this? Seems abit of an overkill to allow 200 odd machines to relay, and even if you add 200 machines to the relay, it's probably not a good idea if these applications are on the clients. Maybe the app cant do that, or isnt written well? Would make sense to have a server/client architecture rather than allowing each client to do this. aybe check with the app vendor for a better way to do this? If you want to add those 200 odd clients, then I'd create a new receoven connector for app relay and add in subnet ranges for those 200 clients would be better than adding individual IPs. Sukh

Quote "But the problem is application runs on more than 200 machines with differ ip address range...how can i allow application to send email.." The only option looks here is you need to add all those IP into receive connector network. This could be remove if you use any LB so you need to allow only one IP (I hope you don't have it). As sukh said above you have to create one new receive connector and use it for relay. How to configure a new receive connector for application Email relay:: http://exchangepedia.com/2007/01/exchange-server-2007-how-to-allow-relaying.htmlAnil MCC 2011,ITIL V3,MCSA 2003,MCTS 2010, My Blog : http://messagingschool.wordpress.com

One other option is to give user123 a mailbox and change the settings for SMTP in the Application to use port 587 instad of 25. That way, the Receive Connector "Client SERVER" will used and allowing the Application to submit.Martina Miskovic

Thanks Guys For all your replies...Will try as u suggested.