Solved

Cant Send or Recieve Exchange Email Externally

Posted on 2012-03-27
7
528 Views
Last Modified: 2012-04-21
Hi I am running an exchange server 2010. Today we stopped receiving email from outside and we cannot send email outside. Also our VPN has stopped working.  There are several security updates pending going to run those and see if it helps

Please Advise.
0
Comment
Question by:cbd1012
7 Comments
 

Expert Comment

by:Toluene
ID: 37773063
If your VPN is pointed to your FQ.domain name, then I would suggest checking DNS and your MX Records.  If the MX records were changed and you use that name for your VPN and it's pointed somewhere else, then that could cause your problem.
0
 
LVL 1

Expert Comment

by:mlehnertz
ID: 37773132
Make sure the DNS servers for the domain are responding.
0
 

Author Comment

by:cbd1012
ID: 37773203
How Do i do that.. should i check DNS server on the server itself or DNS with the hosting provider .. we have a website with the same name and it is responding. So does that mean the dns server is responding ?
0
Why spend so long doing email signature updates?

Do you spend loads of your time carrying out email signature updates? Not very interesting are they? Don’t let signature updates get you down. Let Exclaimer Cloud - Signatures for Office 365 make managing email signatures a breeze.

 
LVL 7

Expert Comment

by:abdulalikhan
ID: 37773256
Check your domain MX by going to www.mxtoolbox.com website and see if your ip is pingable [if allowed from outside] or try to telnet on the MX IP on port 25 from outsite.
0
 
LVL 1

Expert Comment

by:mlehnertz
ID: 37773336
It is still possible to browse a web site at www.domain.com even when the DNS servers are not functioning due to the caching of DNS.  It's a matter of timing surrounding the DNS lookups.

Since it sounds like you are at a remote location (you say the VPN doesn't work), the simple way to test DNS is to jump to a command prompt and type "nslookup host.domain.com".  Replace "host.domain.com" with the name of your mail server - or any WAN facing server for that matter.  You always want to test DNS from outside of the network.

I'd verify that your DNS is working properly before doing anything else because it sounds like you have a DNS issue.
0
 

Accepted Solution

by:
cbd1012 earned 0 total points
ID: 37773337
Hi Guys,

So i ran all the updates and mail is flowing and the VPN is working. I guess microsoft is serious about their security updates.

Thanks for your help
0
 

Author Closing Comment

by:cbd1012
ID: 37875101
My solution solved the problem.
0

Featured Post

6 Surprising Benefits of Threat Intelligence

All sorts of threat intelligence is available on the web. Intelligence you can learn from, and use to anticipate and prepare for future attacks.

Join & Write a Comment

Exchange server is not supported in any cloud-hosted platform (other than Azure with Azure Premium Storage).
Not sure what the best email signature size is? Are you worried about email signature image size? Follow this best practice guide.
In this Micro Video tutorial you will learn the basics about Database Availability Groups and How to configure one using a live Exchange Server Environment. The video tutorial explains the basics of the Exchange server Database Availability grou…
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…

708 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

18 Experts available now in Live!

Get 1:1 Help Now