Solved

Exchange 2010 can't send to internet.

Posted on 2012-12-29
6
338 Views
Last Modified: 2012-12-29
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.
0
Comment
Question by:Bahloul
6 Comments
 
LVL 6

Expert Comment

by:emadallan
ID: 38728880
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.
0
 
LVL 3

Author Comment

by:Bahloul
ID: 38728908
My zones are hosted to ISP .
0
 
LVL 6

Expert Comment

by:emadallan
ID: 38728946
so contact your ISP.
0
Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

 
LVL 23

Expert Comment

by:Suliman Abu Kharroub
ID: 38729016
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)
0
 
LVL 6

Expert Comment

by:emadallan
ID: 38729056
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.
0
 
LVL 63

Accepted Solution

by:
Simon Butler (Sembee) earned 500 total points
ID: 38729094
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.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Follow this checklist to learn more about the 15 things you should never include in an email signature from personal quotes, animated gifs and out-of-date marketing content.
This article explains in simple steps how to renew expiring Exchange Server Internal Transport Certificate.
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…
This video shows how to quickly and easily add an email signature for all users on Exchange 2016. The resulting signature is applied on a server level by Exchange Online. The email signature template has been downloaded from: www.mail-signatures…

786 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question