You might not be able to send email with an Outlook.com, Office 365, or Exchange account until you update to iOS 11.0.1.
If your email account is hosted by Microsoft on Outlook.com or Office 365, or an Exchange Server 2016 running on Windows Server 2016, you might see this error message when you try to send an email with iOS 11: “Cannot Send Mail. The message was rejected by the server.”
To fix the issue, update to iOS 11.0.1 or later.
On April 6 i was attending the Dutch Skype for Business user groups event at Microsoft Netherlands. Especially for those present in the Netherlands, we will explain the new telephony capabilities Netherlands in Office 365 (PSTN calling).
The agenda:
17: 30-18: 00 Registration
18:00 to 18:30 Skype for Business Online developments in the Netherlands (van Houttum, MVP)
18:30 to 18:45 Welcome and Key Note Session
18:45 to 19:10 Session 1 (Nordic)
Cloud PBX – Options (AA CQ CCE and more) (Lasse Nordvik Wedo, MVP), support from (Stale Hansen, MVP)
19:10 to 19:35 Session 2 (Germany)
Online Dial Pans with CloudPBX (Thomas Poett, MVP)
19: 35- 20:00 Session 3 (UK)
Trusted Server API SfB (Tom Morgen and Ben Lee, MVPs)
8:00 p.m. to 20:15 BREAK
20:15 to 20:40 Session 4 (Benelux)
Teams in O365 (Johan Delimon, MVP) with support from (van Houttum, MVP)
20:40 to 21:05 Session 5 (Italy)
Hybrid Skype4B Best Practice for Cloud PBX with PSTN Connectivity (Alessandro Appiani, MVP)
If you want to look the session back: https://join-emea.broadcast.skype.com/skype4b-ug.de/9dab4d2cc4074a25b7ab83ddbfe57821/nl-NL/
Status: Active
Action Required by: October 31, 2017 at 5:59 PM UTC
Details: On October 31st, 2017, Exchange Online mailboxes in Office 365 will require connections from Outlook for Windows use MAPI over HTTP, our new method of connectivity and transport between Outlook for Windows and Exchange. In May of 2014, Microsoft introduced MAPI over HTTP as a replacement for RPC over HTTP. RPC over HTTP was a legacy connection protocol that is being deprecated from Exchange Online. Beginning October 31, 2017, Outlook for Windows clients using RPC over HTTP will be unable to access their Exchange Online mailbox. The necessary action depends on the version of Outlook in use in your organization. If you are using Outlook 2007 or earlier, you need to upgrade. Outlook 2007 does not contain support for the MAPI/HTTP protocol. We encourage you to update to the Office 365 ProPlus subscription, or access Outlook via the web browser (which is included in your current subscription plan). Outlook 2010-2016 customers will need to ensure their version of Outlook for Windows is set up to support MAPI/HTTP. At a minimum, you should ensure you have installed the December 2015 update. Lastly, ensure your Outlook clients are not using a registry key to block MAPI/HTTP.
Message Center: MC85988 – Potential service disruption for Outlook for Windows users
Posted: November 16, 2016
Additional Information: KB3201590: RPC over HTTP deprecated in Office 365 on October 31, 2017
On ADFS page you get error: 00000000-0000-0000-0d00-0080000000e1
Event viewer: Event 364 Microsoft.IdentityServer.Web.IdPInitiatedSignonPageDisabledException: MSIS7012: An error occurred while processing the request.
Get-AdfsProperties | select EnableIdPInitiatedSignonPage
Set-AdfsProperties -EnableIdPInitiatedSignonPage $true
Office 2010/2013/2016 supports integration of Updates by placing the MSP files in the Updates folder of the installation medium.
The challenge is more in getting all the update files. Fortunate there are a few great community users that have created WHDownloader for downloading these files and they also maintain the list of applicable updates for Office 2010 and Office 2013 and 2016
Saving a lot of time 
There are two different versions of the Office Deployment Tool available – one for Office 2013 and a different one for Office 2016. Each Office Deployment Tool works only with that specific version of Office. You can download them from the Microsoft Download Center by using the following links:
Configuration.xml
<Configuration>
<Add SourcePath=”d:\2016\” OfficeClientEdition=”32″ Branch=”Current”>
<Product ID=”O365ProPlusRetail”>
<Language ID=”en-us” />
<Language ID=”nl-nl” />
</Product>
<Product ID=”VisioProRetail”>
<Language ID=”en-us” />
<Language ID=”nl-nl” />
</Product>
</Add>
<!– <Updates Enabled=”TRUE” Branch=”Current” /> –>
<Display Level=”Full” AcceptEULA=”TRUE” />
<Logging Name=”OfficeSetup.txt” Path=”%temp%” />
<Property Name=”AUTOACTIVATE” Value=”1″ />
</Configuration>
Download
D:\2016\setup.exe /download d:\2016\configuration.xml
Install / Configure Office 365 (2016)
D:\2016\setup.exe /configure d:\2016\configuration.xml
Source: https://technet.microsoft.com/en-us/library/jj219424.aspx
A recent update for Windows may cause Outlook to crash.
The update that causes this is KB3097877 and it appears to be limited to only some Windows 7 installations when downloading online images for a HTML message. The version of Outlook that you are using doesn’t seem to matter and other applications may also be affected.
Thanks to Howto-Outlook
Lync Basic 2013 provides all the basic functionality that’s available in the full version of Lync (Lync 2013). However, if you want to use any of the following features, you will need to upgrade to Lync 2013:
Download Skype for Business Basic
Microsoft Skype for Business Basic (64 Bit)
http://www.microsoft.com/en-us/download/details.aspx?id=49440
Microsoft Skype for Business Basic (32 Bit)
http://www.microsoft.com/en-us/download/details.aspx?id=49439
About two weeks October 13, 2015 this is the final day of mainstream support for Outlook 2010.
This is especially relevant to Exchange Online users as the system requirements for Office 365 state that it is designed to work with “any version of Microsoft Office in mainstream support”. While Microsoft does not actively block you from connecting to Office 365 with legacy versions or client applications, the text around older versions includes phrases like “does not recommend”, “limited support” and “quality of user experience will diminish over time”.
Office Lens trims, enhances and makes pictures of whiteboards and docs readable, and saves them to OneNote. You can use Office Lens to convert images to PDF, Word and PowerPoint files too. Office Lens is like having a scanner in your pocket. Like magic, it will digitalize notes on whiteboards or blackboards. Always find important documents or business cards. Sketch your ideas and snap a picture for later. Don’t lose receipts or stray sticky notes again!
What’s new:
– Now you can convert your pictures to PDF files with selectable text, in addition to Word and PowerPoint files, and save them to OneDrive.
Scenarios:
– Capture and crop a picture of a whiteboard or blackboard and share your meeting notes with co-workers.
– Make digital copies of your printed documents, business cards or posters and trim them precisely.
– Printed text will be automatically recognized (using OCR) so you can search for words in images and copy and edit them.
Features:
– With Whiteboard mode, Office Lens trims and cleans up glare and shadows.
– With Document mode, Office Lens trims and colors images perfectly.
– Pictures are saved to your camera roll and also directly into OneNote, so you can see the images across all your devices.
– Choose to convert images to PDF (.pdf), Word (.docx), or PowerPoint (.pptx) files that are automatically saved to OneDrive.
Note: Office Lens requires logging in with your Microsoft Account. Your Microsoft Account must be same as the one registered on your device.