unable to send emails out - exchange 2003

Posted on 2010-11-18
Last Modified: 2012-06-27
Hello experts!!!

I need your guide to find out why my exchange server is unable to receive emails from outside, we are able to send to outside & my users are not able to use the webmail services either...
I have restarted the exchange and barracuda firewall...
in my barracuda I don't see any traffic coming from outside ...

I don't get any errors back (I sent a test from yahoo to my email).

Any ideas what could be happening??

THanks a lot
Question by:ARPI
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
  • 3
LVL 20

Expert Comment

ID: 34164388
From the outside can you telnet to the barracuda?  

from a command line telnet mxrecord 25  do you get a banner?   If not check your firewall to see if there is a rule forwarding smtp to the barracuda.    Post your results here...

Reboot the barracuda if you have not done this already.


Author Comment

ID: 34164577

using the telnet session when I enter instruction rcpt tp: I got the error...." UNable to relay for

I have alse rebooted the barracuda and still unable to view any traffic...
LVL 20

Expert Comment

ID: 34164600
Ok if you send from a Gmail Account to yourself do you get a bounce back?

Can you bypass the barracuda as a temp test to see if you receive email?   Just change the firewall forward rule to your exchange box.
Office 365 Training for IT Pros

Learn how to provision tenants, synchronize on-premise Active Directory, implement Single Sign-On, customize Office deployment, and protect your organization with eDiscovery and DLP policies.  Only from Platform Scholar.


Author Comment

ID: 34164688

No, I don't get any emails back from the gmail/yahoo, I dont' get any error messages.

LVL 20

Accepted Solution

EndureKona earned 500 total points
ID: 34164718
Can you remove the barracuda from the question?   change your firewall rule to forward SMTP to the exchange box?

I believe the issue is with the barracuda.

Author Closing Comment

ID: 34165175
The issue was that my users had pushed the reset button of my router and configuration was wiped out...i

until you guys told me to check firewall- barracuda I check there was no configuration routed to it...

THanks a lot!!!

Featured Post

Free eBook: Backup on AWS

Everything you need to know about backup and disaster recovery with AWS, for FREE!

Question has a verified solution.

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

Following basic email etiquette rules will help you write a professional email and achieve a good, lasting impression with your contacts.
In-place Upgrading Dirsync to Azure AD Connect
The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…

707 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