"The following recipient is outside the organization" MailTip is displayed even though the recipient is a person in your Office 365 organization

Article translations Article translations
Article ID: 2022039 - View products that this article applies to.
Not sure what release of Office 365 you're using? Go to the following Microsoft website:
Am I using Office 365 after the service upgrade?
Expand all | Collapse all

PROBLEM

When you create an email message in Microsoft Outlook 2010 or a later version in a Microsoft Office 365 environment, the following MailTip message is displayed even though the recipient is a person in your organization:
The following recipient is outside the organization

CAUSE

This issue occurs if the following conditions are true:
  • The External Recipients MailTip is enabled.
  • The domain that the recipient belongs to isn't associated with the organization in Exchange Online.

SOLUTION

To fix this issue, use one of the following methods.

Method 1: Add the domain to Office 365 and verify it

If a domain isn't associated with the organization in question, it's considered an external domain. This association is set up by adding a new accepted domain in Exchange Online. To add a new accepted domain to the list of available domains in Exchange Online, the domain must be added as a verified domain in the Office 365 portal.

For more information about how to add and verify a domain in Office 365, go to one of the following Microsoft websites:
  • Office 365: Internet domains
  • Office 365 pre-upgrade:

Method 2: Disable the External Recipients MailTip

To disable the External Recipients MailTip, follow these steps:
  1. Connect to Exchange Online by using remote PowerShell. For more information about how do to this, go to the following Microsoft website:
    Connect to Exchange Online Using Remote PowerShell
  2. Run the following Windows PowerShell cmdlet:
    Set-OrganizationConfig -MailTipsExternalRecipientsTipsEnabled $false

MORE INFORMATION

MailTips are informative messages that are displayed to users when they compose an email message. MailTips are available only in Outlook Web App and in Outlook 2010 and later versions. As a user creates an email message, Outlook checks whether any MailTips apply to the message, based on configuration information that's retrieved from Exchange Online. If a MailTip does apply, it's displayed above the address field of the email message. For example, a MailTip is displayed to let you know that the person who you are composing a message to is out of office.

For more information about MailTips, go to the following Microsoft websites:
  • Turn MailTips on or off
  • MailTips
Still need help? Go to the Office 365 Community website.

Properties

Article ID: 2022039 - Last Review: May 16, 2013 - Revision: 8.0
Applies to
  • Microsoft Office 365 for enterprises (pre-upgrade)
  • Microsoft Office 365 for small businesses  (pre-upgrade)
  • Microsoft Office 365 for education  (pre-upgrade)
  • Microsoft Exchange Online
Keywords: 
o365 o365a o365p o365e o365022013 after upgrade o365062011 pre-upgrade o365m KB2022039

Give Feedback

 

Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from smallbusiness.support.microsoft.com