Solved

Underscore in Exchange server name

Posted on 2004-07-30
1
348 Views
Last Modified: 2012-05-05
I have an Exchange server 5.5 that I send mail out to the Internet, will the underscore cause any problems with older mail systems not being bale to receive mail from me and why?  I know underscores are not RFC compliant per http://www.faqs.org/rfcs/rfc1035.html, but I have sent mail out like this for years with no problem until now someone says they have a Groupwise mail server not receiving mail from me due to "a rejection due to validation failure."  

Although I know it is not the preferred naming convention for a mail server, will it in all intents and purposes cause mail to not be received by certain mail servers?

thanks.
0
Comment
Question by:ohmadmin
1 Comment
 
LVL 104

Accepted Solution

by:
Sembee earned 250 total points
ID: 11680770
That depends if it is sending that name out to the Internet.

If the machine is known to the Internet as mail.domain.com then you should be fine.
If the machine is known to the Internet as our_mail_server.domain.com then you should change it. I cannot remember if you can a different name in Exchange 5.5 for FQDN and server name. I know you can in Exchange 200x.

The validation failure could be reverse lookup problem. More sites and servers are starting to use this to validate that you are who you say you are. You would need to speak to your ISP to resolve that problem.

Simon.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

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

Microsoft Outlook provides an easy way to recover permanently deleted items. When you empty the Deleted Items or simply deleted an Outlook data items using shift+Del key then it can be recovered using Registry Key settings.  Caution- Wrong Registry…
It’s a strangely common occurrence that when you send someone their login details for a system, they can’t get in. This article will help you understand why it happens, and what you can do about it.
This Micro Tutorial demonstrates  how Internet marketers work with competitive analysis data, and a common task in data preparation is creating separate column for domains. You will then extract from a list of URLs.
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

840 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