The following articles were included in our Exchange Messaging Outlook (EMO) newsletter published on March 22, 2018.
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Today's Highlights:
- Office 365 is junking email
- Using @Mentions
- Outlook UserVoice Request: Calendar Details View
- Outlook 2016 & iCloud
Office 365 is junking email
Starting last week, Microsoft implemented stricter fraud detection checks in Office 365 and Exchange Online Protection and unauthenticated messages are automatically marked as spam and moved to the Junk Email folder. If an address is on the Safe list, Outlook will leave the message in the Inbox, with this message added:
[This sender failed our fraud detection checks and may not be who they appear to be. Learn about spoofing at aka.ms/LearnAboutSpoofing]
Unfortunately, many users think the problem is with their configuration:
I'm using a contact form on my website but even though I have added my domain as a safe sender, the emails are still going to junk folder. I don't know what else to do.
End-users can’t fix this by changing settings in Outlook. The problem is that messages sent from domains that have not published SPF, DKIM, or DMARC records to DNS risk being flagged as spoofed or moved to the Junk Email folder.
The administrator needs to verify the domain has SPF, DKIM, or DMARC records property configured for all servers that send mail from the domain, including website contact forms and mailing list services. I recommend adding SPF records first as they are the easiest to configure and supported by more mail servers.
For more information on this issue, see
The Junkings will Continue Until Morale Improves
Messages more marked as spoofed (and moved to Junk e-mail) in Office 365? You’re not alone!
Set up SPF in Office 365 to help prevent spoofing (TechNet)
Using @Mentions
A user had an issue with the @Mentions feature in Outlook:
Whenever I type @ in outlook I get a box pop up that tells me they can't find that person. How do I remove that feature?
When you type @ in the message body and begin typing a name, an autocomplete list pops up with matches. After you select the name, if the person is not on the conversation, their address is added to the To field. The @mention is highlighted in in the message body for better visibility.
If you aren’t typing a mention, keep typing and the autocomplete list will disappear once you run out of matches and enter a space. If the dialog won't go away after displaying the message "We couldn't find the person you were looking for.", press ESC to dismiss it.
As much as many users and administrators would like to disable this feature, its not possible at this time.
More information on the feature is available at
Outlook Request: Calendar Details View
Based on the number of requests I've seen for this in recent months, a lot of Outlook 2007 and 2010 users are now being upgraded to Outlook 2016 and they miss the ability to hide some details.
Can you please add the ability to toggle the level of detail in calendar? My monthly Calendar view is so cluttered in Outlook 2016.
If you don’t remember the feature (it was removed from Outlook 2013), you could choose how much detail displayed on the calendar. In Low detail, most appointments were not displayed on the calendar while Medium detail displayed the appointments as lines on the calendar, the width of the line was determined by the length of the appointment. (I have screenshots in this article at Outlook-Tips.)
While the medium details view was useful to see how busy your day was, the biggest issue I had, especially with low details, was that users forgot they were using Low details before asking for help finding the events Outlook "deleted".
While it’s not possible to recreate the Medium details view, you can use custom views to hide events on the calendar to reduce the clutter. For example, you can hide shorter meetings by creating an Advanced filter for “Duration is more than 31 minutes”. Show only events marked Busy, Tentative, or Out of Office by creating a filter to “Show time as not equal to Free”. You can hide past events using “Start on or after Today”. (This will show all recurring events unless you add “Recurring equals No”.) If you use Categories, you can create custom views to show or hide events based on the category.
Outlook 2016 & iCloud
I’m seeing a lot of complaints from users that iCloud is not working with Outlook 2016. When they try to set up iCloud to sync Calendar & Contacts, they receive a message that they need to repair the iCloud installation. In all cases, the user has a new computer and is using the pre-installed Office version. This version is from the Windows store and does not yet support most addins, including iCloud.
The fix: remove the pre-installed store version and install Office from Office.com. Office version 16.0.9027.1000 and higher will uninstall the store apps as part of the installation process or remove the store apps from Settings, Apps & features.
After installing a click-to-run version of Office, you may need to repair the iCloud installation. After rebooting it should work, however, some users receive a message that they don't have a default account set. That issue is being investigated and at this time, the only known solution to is reinstall Windows fixes it. No, its not a good solution but if you need iCloud working "now", it is the only option.
For more information on the store version see
New & Updated Exchange KB Articles
"Active Directory error 0x52" at Exchange Server 2016 Edge role installation
https://support.microsoft.com/kb/4093253
All cross-forest meeting updates have to be accepted again in Exchange Server 2016 and 2013
https://support.microsoft.com/kb/4058379
Blank page in Exchange Admin Center Audit Log in Exchange Server 2016
https://support.microsoft.com/kb/4058372
Can't access a CAS website such as OWA/ECP/Autodiscover in Exchange Server 2016
https://support.microsoft.com/kb/4073111
Can't enable OWA offline access in Exchange Server 2016
https://support.microsoft.com/kb/4073214
Disabling a mailbox can't remove legacyExchangeDN from user's properties in Exchange Server 2016
https://support.microsoft.com/kb/4058399
Exchange 2016 RPC Client Access service experiences high CPU usage or a memory leak
https://support.microsoft.com/kb/4023758
Exchange Control Panel (ECP) redirection fails in Exchange Server 2016
https://support.microsoft.com/kb/4058383
MatchSubdomains isn't usable for Set-AcceptedDomain in Exchange Server 2016
https://support.microsoft.com/kb/4076520
"Object not set to an instance of an object" from Office 365 Hybrid Configuration Wizard
https://support.microsoft.com/kb/4051381
Search fails on Exchange Server 2016 and Exchange Server 2013
https://support.microsoft.com/kb/4013606
Description of the security update for Microsoft Exchange: March 13, 2018
https://support.microsoft.com/kb/4073392
Users can't manage group synced from on-premises to Office 365 in a hybrid environment
https://support.microsoft.com/kb/4041533
You can't access OWA or ECP after you install Exchange Server 2016 CU8
https://support.microsoft.com/kb/4073110
New & Updated Office 365 KB Articles
Auto-mapping doesn’t work as expected in an Office 365 hybrid environment
https://support.microsoft.com/kb/3080561
BOXServiceAccount is added to a role in Office 365 alerts
https://support.microsoft.com/kb/4039823
Microsoft 365 Enterprise-Level Identity Protection ...
https://support.microsoft.com/kb/4073210
Office 365 reports show anonymous user names instead of actual user names
https://support.microsoft.com/kb/4090039
Users can't manage group synced from on-premises to Office 365 in a hybrid environment
https://support.microsoft.com/kb/4041533
New & Updated Outlook KB Articles
Outlook performance issues when there are too many items or folders in a Cached mode .ost or .pst file folder
https://support.microsoft.com/kb/2768656
Performance and synchronization problems when you work with folders in a secondary mailbox in Outlook
https://support.microsoft.com/kb/3115602
You can't access a shared calendar by using Outlook for a hidden mailbox
https://support.microsoft.com/kb/3205457
You can't sign in after you update to Office 2016 build 16.0.7967 or a later version on Windows 10
https://support.microsoft.com/kb/4025962
Other Resources
Convert an Exchange or IMAP .OST to a .PST
How to convert an ost file to pst file in order to open it in an Outlook profile.
How to Remove Holidays From the Default Calendar
Microsoft Outlook comes with a file named Outlook.hol that includes lists of holidays that you can import into your personal Calendar folder using the File, Options, Calendar, Add Holidays command. This makes it easy to add holidays and many users wind up importing the same group of holidays twice or adding extra holidays.
Outlook Tip: Show all Mondays in the Calendar
How to view only Mondays (or only Tuesdays, Wednesdays... ) or select non-contigious dates in Outlook’s Calendar (up to 14 dates).
Outlook's "Not Junk" option isn't available
Why the Not Junk option is disabled or greyed out in Outlook.