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:

Professional Opinions
Ask a Question
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

troubleshooting Question

Exchange PTR Record and Natting

Avatar of Jack_son_
Jack_son_Flag for Afghanistan asked on
3 Comments1 Solution762 ViewsLast Modified:
If you nat your exchange outound, it seems some mail systems blacklist email even with a .ptr record.  Does anyone know the best way to set up this for both security and to help prevent blacklisting?