We help IT Professionals succeed at work.
Get Started

Have exchanged installed but SMTP port is closed?

Last Modified: 2013-11-30
Ive configured my new exchange box, it all looks good. However, sending test emails have failed and tests show that telnet to port 25 on the server IP is refused. Internally I telnet to the box and am refused. I dont get it.

I have enabled EHLO access to the FQDN. I have disabled firewall (for testing), what else is there? I would have thought that exchange install would have opened the port. Its not the firewall, ive checked and besides ive mentioned I did an internal telnet test and failed.

What am I missing?
Watch Question
Messaging Engineer - Disaster Recovery Engineer
This problem has been solved!
Unlock 2 Answers and 8 Comments.
See Answers
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE