Solved

Can't receive E-mails after router swap

Posted on 2008-06-11
2
190 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
2 Comments
 
LVL 25

Accepted Solution

by:
Robbie_Leggett earned 125 total points
Comment Utility
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
Comment Utility
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

Free Trending Threat Insights Every Day

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

Join & Write a Comment

Hello Friends, My friends and relatives always ask me how to delete all the various types of emails at once in our g-mail  or windows live account.  So I researched this topic to find a unique solution to this query.  Here it is for those who do …
What is Usenet? There are many different opinions on exactly what Usenet is an isn't. Many opinions are incorrect simply out of ignorance. The Wikipedia listing about Usenet does a good job of explaining it, so instead of repeating it all here I wi…
Here's a very brief overview of the methods PRTG Network Monitor (https://www.paessler.com/prtg) offers for monitoring bandwidth, to help you decide which methods you´d like to investigate in more detail.  The methods are covered in more detail in o…
This video explains how to create simple products associated to Magento configurable product and offers fast way of their generation with Store Manager for Magento tool.

762 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

9 Experts available now in Live!

Get 1:1 Help Now