Solved

How do you set exchange 2003 to only accept incoming email on port 25 from specific ip range?

Posted on 2007-03-23
2
281 Views
Last Modified: 2010-04-09
I have a new exchange 2003 server. I use a 3rd party spam filtering company. My dns is setup so email goes to the spam filtering company first, they filter the email for spam and viruses, and then shoot me only the good stuff. The problem I am having is that spammers are circumventing dns by blasting my server directly (ignoring dns) with smtp messages. Unfortunately my firewal doesn't seem to have any advanced options to allow me to configure to block smtp traffic unless from the ip range of my spam filtering company. I believe their is an option in exchange to allow one to specify an ip range that the server will allow incoming smtp from. I would then like to reject emails coming from all other ip addresses. My router is a 2wire AT&T dsl basic router.
0
Comment
Question by:FASTECHS
[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
  • 2
2 Comments
 
LVL 35

Accepted Solution

by:
rakeshmiglani earned 500 total points
ID: 18780062
there is an option in message delivery under global settings. the tab you are looking for is connection filtering
0
 
LVL 35

Assisted Solution

by:rakeshmiglani
rakeshmiglani earned 500 total points
ID: 18780074
the smtp virtual server also has settings that can be configured under the access tab connections button
0

Featured Post

On Demand Webinar - Networking for the Cloud Era

This webinar discusses:
-Common barriers companies experience when moving to the cloud
-How SD-WAN changes the way we look at networks
-Best practices customers should employ moving forward with cloud migration
-What happens behind the scenes of SteelConnect’s one-click button

Question has a verified solution.

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

Learn to move / copy / export exchange contacts to iPhone without using any software. Also see the issues in configuration of exchange with iPhone to migrate contacts.
Encryption for Business Encryption (https://en.wikipedia.org/wiki/Encryption) ensures the safety of our data when sending emails. In most cases, to read an encrypted email you must enter a secret key that will enable you to decrypt the email. T…
To show how to generate a certificate request in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Servers >> Certificates…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

740 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