When creating a Sitemailbox in O365 you may receive an error while the mailbox is created such as:
| The site mailbox couldn’t be provisioned. |
|
The property „DisplayName“ with value „Testproject “ is invalid. The value can’t contain leading or trailing whitespace.
|
In this case the error message is somehow misleading. Yes, tailing white spaces are not allowed but in this case the title of the website is „Testproject & Co“. After a little research I found out that the error is caused by the ampersent „&“ within the site title.
The ampersent in the title is not escaped when set as parameter in the url for the sitemailbox creation. This leads to a systemside missinterpretation of the URL as an „&“ is used for seperating parameters in an URL.
If you remove the „&“ from the site title the site mailbox is reated. So if you want to use the sitemailbox feature be sure to not have an „&“ in your title.
To remove the & goto the site settings and click on „Title, decription, and logo“.
Change the „&“ into something meaningful …
…such as the word „and“.
After saving the change you can try to recreate the sitemailbox. And voilà – the URL parameter is correct and the site mailbox has been created.
I have also checked if there are other special characters such as $(){}/., that might cause this error but all other characters worked well.
If you find any other characters please let me know.
