?
Solved

Sender/Recipient Filtering:  Blocking spam email that apears to come from another adress on my exchange server.

Posted on 2009-02-11
1
Medium Priority
?
364 Views
Last Modified: 2012-05-06
I used to get lots of spam but have since implemented "Choicemail" to block all my spam.  It was about 99.9% effective.
Starting a couple weeks ago, I get about 10 spam emails a day that appear to come from another user in my orginization (employee@mydomain.com).  Is there a way to set up filtering so that any email that comes from an address within my organization but does not come from within my own exchange server is blocked?  I do use Outlook Web Access, but, the way I understand it, the actuall email is still sent from my exchange server.  OWA is just a way of accessing it remotely.  
Please advise.
0
Comment
Question by:Mike_Plug
1 Comment
 
LVL 9

Accepted Solution

by:
dmessman earned 2000 total points
ID: 23613056
What you need is an SPF record and then your anti-spam system to check against that SPF record.

An SPF (sender policy framework) record defines what servers are authorized to send mail from your domain.  You'd want to make an SPF record here:

http://www.openspf.org/

And then put that SPF record in your DNS records on your nameserver and then make sure your anti-spam system is checking against that SPF record.
0

Featured Post

Free Backup Tool for VMware and Hyper-V

Restore full virtual machine or individual guest files from 19 common file systems directly from the backup file. Schedule VM backups with PowerShell scripts. Set desired time, lean back and let the script to notify you via email upon completion.  

Question has a verified solution.

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

If you have come across a situation where you need to find some EDB mailbox recovery techniques, then here you will find the same. In this article, we will take you through three techniques using which you will be able to perform EDB recovery. You …
There can be many situations demanding the conversion of Outlook OST files to PST format and as such, there is no shortage of automated tools to perform this conversion. However, what makes Stellar OST to PST converter stand above the rest? Let us e…
In this video we show how to create a mailbox database 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 >> Data…
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…
Suggested Courses
Course of the Month15 days, 4 hours left to enroll

839 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