Solved

Can't receive E-mails after router swap

Posted on 2008-06-11
2
195 Views
Last Modified: 2013-11-30
Today we replaced an old Instagate Ex with a new Sonicwall TZ-190  and we are having problems receiving E-mails.  We are currently running an exchange server on SBS 2003 and everything such as OWA or surfing the Internet works just fine.

When setting up the Sonicwall I used the Wizard to create a public server on port 25 that was supposed to move traffice from the WAN to the exchange server, however only sending is working.  I can telnet to the SMTP server inside the domain, just not through the Sonicwall.  When I try telnet through the sonicwall I get a flashing prompt and no error message.

Latest firmware has been pushed into the Sonicwall.  Any ideas anyone?
0
Comment
Question by:plythall
[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 Comments
 
LVL 25

Accepted Solution

by:
Robbie_Leggett earned 125 total points
ID: 21767089
The rule on the Sonicwall has clearly been created incorrectly. Can you attach an image of the rule please? (Obviously blanking out the bits we're not meant to see) :-)
0
 

Author Closing Comment

by:plythall
ID: 31518116
In the end, I found that the problem wasn't with the Sonicwall, but with the ISP providers in my area.  The network running the mail server is on an ADSL line provided by the local phone company, while I am using a cable internet based connection.  Apparently the phone company actually blocks telnet connections directory from one network to another.  Telnet worked just fine once I connected to a system on an ADSL line by the same phone company.
0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

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

The articles for turning off the Client firewall policy on the internet are for SBS 2008 and don't really help for SBS 2011. They actually moved the Client firewall policy. In 2011, the client firewall policy has moved to the SBS computers conta…
A 2007 NCSA Cyber Security survey revealed that a mere 4% of the population has a full understanding of firewalls. As business owner, you should be part of that 4% that has a full understanding.
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
Do you want to know how to make a graph with Microsoft Access? First, create a query with the data for the chart. Then make a blank form and add a chart control. This video also shows how to change what data is displayed on the graph as well as form…

724 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