Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Outbound mail failure from unknown recipients?

Posted on 2002-07-14
2
Medium Priority
?
253 Views
Last Modified: 2010-03-05
We recieve many outbound message failure from recipients that do not exist within our exchange organization.They are all usually being sent to yahhoo.com or aol.com.
Obviousley they are returned undeliverable because they do not exist.
Any ideas whats happening? Are we being used by external hackers?

Thanks a million in advance
Cracky141
0
Comment
Question by:cracky141
2 Comments
 

Accepted Solution

by:
vpgopikrishnan earned 210 total points
ID: 7153374
In the internet mail service, select routing tab and select routing restrictions, check the host and clients that succesfully authenticate
0
 

Author Comment

by:cracky141
ID: 7153546
I have no restrictions in place.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

On September 18, Experts Exchange launched the first installment of the Help Bell, a new feature for Premium Members, Team Accounts, and Qualified Experts. The Help Bell will serve as an additional tool to help teams increase question visibility.
Here in this article, you will get a step by step guidance on how to restore an Exchange database to a recovery database. Get a brief on Recovery Database and how it can be used to restore Exchange database in this section!
The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager
To add imagery to an HTML email signature, you have two options available to you. You can either add a logo/image by embedding it directly into the signature or hosting it externally and linking to it. The vast majority of email clients display l…
Suggested Courses

916 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