Article ID: 2776497 - View products that this article applies to.
This article is listed on Office 365 DNS diagnostic tool.
To use your own domain name with Office 365 will need up to 10 DNS records manually configured third-party Domain Registrar Web site.
Misconfiguration of the DNS is one of the top queries received from customers of the Office 365 days a year. May cause problems if DNS record is missing or incorrectly configured in Outlook and mail flow connectivity, Lync sign-in, or external Instant Messaging (IM) provider Federation.
Office 365 DNS Diagnostics detects all the DNS records required for Office 365 services, identifies the known configuration mistakes.
When you use the Office 365 DNS diagnostic
DNS configuration errors is a primary cause of the problem that is described in this section. Strongly recommended to run Office 365 DNS diagnostic to identify these problems.
Exchange Online problems
SharePoint Online the issue
How to use the Office 365 DNS diagnosticOffice 365 DNS Diagnostic can be run on Internet-accessible computers. Office 365 DNS diagnostic tool using Nslookup.exe queries and DNS records of Office 365 days a year from the computer's default DNS servers, detects a DNS misconfiguration. However, does not collect data specific to the computer that is running the tool.
For more information, visit to the following Microsoft Web site.
If you need additional information Office 365 community
(http://community.office365.com/ja-jp/default.aspx)Please see the Web site.
Article ID: 2776497 - Last Review: October 21, 2014 - Revision: 17.0