Solved

Domain emails sent spam

Posted on 2016-08-31
2
30 Views
Last Modified: 2016-09-04
We have our organization email address and exchange server locally. All of a sudden, fake usernames are being sent to different users in our organization.  I.e. Fakeuser@ourdomain.org

Where would the problem rest? At the exchange server or at the local email accounts?
0
Comment
Question by:al4629740
2 Comments
 
LVL 34

Assisted Solution

by:Paul MacDonald
Paul MacDonald earned 250 total points
ID: 41778783
These are probably e-mails coming from outside your organization, being sent to random, made-up users.  There's very little you can do about them except maybe get some anti-spam software, or start using the anti-spam features of Exchange.
0
 
LVL 38

Accepted Solution

by:
Adam Brown earned 250 total points
ID: 41778842
That's called Spoofing. Someone attempts to send messages from a made up email address at your domain to a valid email address on your domain as a way to get past low quality spam filters. Most often, this is resolvable by routing mail through a Spam filtering service or appliance (or Edge Transport role for Exchange) that is configured to know which email addresses are valid and block all messages that come from outside your network but use your email domain as the from address on the message.
0

Featured Post

NAS Cloud Backup Strategies

This article explains backup scenarios when using network storage. We review the so-called “3-2-1 strategy” and summarize the methods you can use to send NAS data to the cloud

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Exchange 2010 error RBAC 3 19
Email Backscatter 1 25
Exchange 2013 logs for troubleshooting mailflow 3 35
Default policy to format email address 1 25
Disabling the Directory Sync Service Account in Office 365 will stop directory synchronization from working.
ADCs have gained traction within the last decade, largely due to increased demand for legacy load balancing appliances to handle more advanced application delivery requirements and improve application performance.
In this video we show how to create an email address policy 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 Mail Flow…
how to add IIS SMTP to handle application/Scanner relays into office 365.

910 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

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now