Exchange 2010 can't send to internet.

Bahloul
Bahloul used Ask the Experts™
on
Hello ,

I have 2 server's Exchange 2010 CAS/HUB  Using Proof-point smart host, i can receive messages from internet but can't send to public domains such as google , and yahoo  from 2 days i send to my gmail and i didn't receive messages to my Google also i didn't receive nondelivery report  also i viewd queue viewer in exchange and and proof-point it's empty , please advice.
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
if you have a firewall that is publishing your exchange, please make sure that you have a dns rule that allow dns from internal to external.

Author

Commented:
My zones are hosted to ISP .
so contact your ISP.
Success in ‘20 With a Profitable Pricing Strategy

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden using our free interactive tool and use it to determine the right price for your IT services. Start calculating Now!

Check your mail server public IP if its black listed :

http://mxtoolbox.com

Also check if there is a PTR record for mail IP on the ISP dns. (for example 1.1.1.1 points to mail.domain.com)
i forgot to mention to verify if you have created a send connector to internet? be aware that send connectors are not created by default.
Most Valuable Expert 2014
Commented:
If you are using a smart host and the queues are empty, then the problem is with the smart host. You need to speak to them to find out where the messages have gone.

While a PTR on your IP address is good to have, with a smart host it isn't necessary.

Simon.

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial