"Invalid e-mail alias" in SBS 2008 console

Posted on 2011-02-26
Last Modified: 2012-05-11
In SBS 2008 using Exchange 2007, when in the SBS console, I changed someones redirected folder quota.  When I clicked OK, it went back to the General category, and pointed to the E-mail Address field and said: "Invalid e-mail alias.  This e-mail alias already exists.  Type a different e-mail alias"

What gives?  This account has been set up for ages.  The only way I could get out was to change the address there to something else.  Now I can't get back to the original email address.

I've googled this, and though there are many who mention this problem, I've never seen a single solution.

My Exchange 2007 version is 8.1 Build 240.6
Question by:DaveWWW
  • 2
  • 2
LVL 74

Expert Comment

by:Glen Knight
ID: 34988807
Is there another user or possibly a public folder or maybe even a distribution group that has this alias? Or does the original one have a space in?
LVL 74

Expert Comment

by:Glen Knight
ID: 34988817
To eliminate the SBS console as being the problem, can you change it back using the Exchange Management Console?

Author Comment

ID: 34988837
Both the old address and the new one that I "had" to create are there in EMC.  The new one is her main one (bolde).  "Set as reply" is greyed out for both addresses.  If I create another email address in there, I cannot set that one as the reply one either.
LVL 13

Accepted Solution

connectex earned 500 total points
ID: 34989090
You need to install SBS 2008 rollup 5. Please this blog post by the SBS team:

Author Closing Comment

ID: 34996691
Thank you very much!

Featured Post

Announcing the Most Valuable Experts of 2016

MVEs are more concerned with the satisfaction of those they help than with the considerable points they can earn. They are the types of people you feel privileged to call colleagues. Join us in honoring this amazing group of Experts.

Question has a verified solution.

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

We are happy to announce a brand new addition to our line of acclaimed email signature management products – CodeTwo Email Signatures for Office 365.
Read this checklist to learn more about the 15 things you should never include in an email signature.
To show how to generate a certificate request in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.:  First we need to log into the Exchange Admin Center. Navigate to the Servers >> Certificates…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit If you want to manage em…

856 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