Solved

Internet  SMTP server configured to use DNS

Posted on 2011-03-07
3
237 Views
Last Modified: 2012-05-11
My network consists of a single Active

Directory domain domain.com that contains two

domain contollers. each domain controller runs

Microsoft Windows Server 2003 and is configured

as a DNS server. Each DNS server is configured

with root hints for resolving Internet host

names

The Exchange organisation contains two server

that run Exchange Server 2003. One Exchange

server is configured with two network adapters

and two SMTP virtual servers. One SMTP virtual

server is configured for internet e- mail

messages. The Internet SMTP virtual serveris

configured to use a DNS server at an ISP as an

external DNS server

the firewall configuration for domain.com is

modified to permit only domain controllers to

make DNS queries to the Internet.User report

that they can no longer send e-mail messages to

recipient on the  internet.However, they can

receive e-mail messages from the Internet

I need to ensure that users can use the

Internet to send and receive e-mail messages?

The manager told I can try either of the suitable methods:-

A.Reconfigure the network adapter used by the

internet SMTP virtual server to use the  DNS

server at the ISP

B.Reconfigure the Internet SMTP virtual server

to not use an external DNS server

C. Configure the Internet SMTP virtual server to

use a smart host to deliver e-mail messages. Use

the fully qualified domain name (FQDN) of an

SMTP server managed by the ISP as the smart host

D. Configure the SMTP connector to use a smart

host to e-mail messages.Use the fully qualified

domain name (FQDN) of an SMTP server managed by

the ISP as the smart host.

0
Comment
Question by:kunalclk
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 5

Accepted Solution

by:
LLMorrisson earned 500 total points
ID: 35059437
So your Exchange server SMTP connector has been set up to use DNS directly to route emails, using your ISP's DNS server for address resolution, yet your firewall only allows DNS traffic out to the Internet from DCs? This would be a problem.

Since your DCs have DNS that can resolve external DNS queries via the root hints, why don't you just set your Exchange server to use those DNS servers instead. I guess this would be your option B. This should solve your issue.
0
 
LVL 76

Expert Comment

by:Alan Hardisty
ID: 35059829
Homework / Exam question perhaps?
0
 
LVL 2

Author Closing Comment

by:kunalclk
ID: 35061665
tn x
0

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

Background Information Recently I have fixed file server permission issues for one of my client. The client has 1800 users and one Windows Server 2008 R2 domain joined file server with 12 TB of data, 250+ shared folders and the folder structure i…
Unified and professional email signatures help maintain a consistent company brand image to the outside world. This article shows how to create an email signature in Exchange Server 2010 using a transport rule and how to overcome native limitations …
This tutorial will walk an individual through the steps necessary to enable the VMware\Hyper-V licensed feature of Backup Exec 2012. In addition, how to add a VMware server and configure a backup job. The first step is to acquire the necessary licen…
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…

732 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