MsExchange Blog Spot Telnet25

June 15, 2012

Allowing application servers to relay off Exchange Server 2010

Filed under: General — telnet25 @ 2:42 am

Scenario: You have application server which needs to relay off your internal Exchange 2010 server ( printer, application etc.)


Exchange 2010 HUB server
Application Relay Server

Task: Allow Application relay server relay off Exchange 2010 HTS server.

Log onto Exchange 2010 HTS Server open EMC under server configuration create new connector for application relay ( fallow the video)

  • New Receive connector, give it a name
  • Specify the FQDN for this connector , next
  • Modify who can relay off this connector , next, finish , Set Authentication and permissions group.




We have do the fist part now we will test the application relay, so log on to application server, and open command line, we will telnet on port 25 from application server to the HUB server and sent mail from command line if mail is received your application will work. Before we get going make sure port 25 from application server to HTS server is NOT BLOCKED , common issues antivirus software blockage, or firewall etc..


Oz Casey, Dedeal ( MVP north America)
MCSE 2003, M+, S+, MCDST
Security+, Project +, Server + (Blog) (Blog)


Leave a Comment »

No comments yet.

RSS feed for comments on this post. TrackBack URI

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

Create a free website or blog at

%d bloggers like this: