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Jun 25, 2015 Outlook for Mac preview 15.11.0 keeps forgetting my Exchange password It seems odd that a major bug like this remained unresolved after the official release of Office for Mac 2016. And still hasn't been corrected! So far 15 out of our 42 active Windows Outlook users have been impacted (not counting Mac Outlook, or holiday users). Everyone is using Outlook 2016 on Windows 10, Office 365 (hybrid setup with all user boxes in the cloud).
NOTE: Microsoft is diminishing support for Outlook 2010 - consider upgrading to Outlook 2016 to have the latest features. If you must use Outlook 2010 and are connecting from off campus, you will need to connect to the VPN the first time.
In order to use Outlook 2010 with Microsoft Office 365, you must be running the most recent version of Outlook 2010. Please note that this must to be done before moving to Office 365 or before opening Outlook 2010 after moving to Office 365. To ensure you are able to sync your email, make sure Outlook 2010 is up to date.
For First-Time Logging In:
To add an Office 365 Account to your Existing Mac Mailbox
NOTE: IMAP/POP will no longer be available for Office 365 users. This is one of the efforts to better secure our email environment. If you are currently using IMAP/POP to access your Office 365 account we will not remove access. However, ITS recommends using Outlook (Windows or Mac), OWA or Outlook mobile (iOS or Android) clients.
We offer limited support for other email clients to access the Office 365 servers.
Basic IMAP (Internet Mail Access Protocol) Settings
IMAP Server / Incoming Mail: outlook.office365.com
IMAP Account: your [email protected] Mailbox Location Prefix: leave this blank Security Settings: SSL (Use secure connection) Verify Certificate: Check this option of applicable Port: 993
SMTP Server / Outgoing Mail: smtp.office365.com
Port: 587 Security Settings: TLS Verify Certificate: check this option if applicable Return Address / Reply To Address: use your alias address (e.g., [email protected])
Basic POP (Post Office Protocol) Settings
POP Server / Incoming Mail: outlook.office365.com
Security Settings: SSL Port: 995 POP Login ID: your [email protected] POP Account: your HawkID followed by @outlook.office365.com SMTP Server / Outgoing Mail: smtp.office365.com Port: 587 Return Address / Reply-To Address: use your alias address (e.g., [email protected])
Exchange Web Services (eg.: Linux)
Host URL: https://outlook.office365.com/EWS/Exchange.asmx
POP - Post Office Protocol (POP) works best when one has only a single computer, since it was designed to support 'offline' message access. Using POP, messages are downloaded to the hard drive and the messages are deleted from the mail server (e.g.,Office 365). Using your POP email client, you can choose to 'Leave mail on the server' and then have access to it from another computer. However, this mode of access is not ideal because it tends to sprinkle messages on each computer you use for mail access. If you use multiple computers, where ALL of them have access to the same server (H:), you can still use POP if you keep your mail on the 'shared' drive (e.g., the 'H:' drive)
IMAP - Internet Message Access Protocol (IMAP) works best when you access mail from more than one computer. IMAP is a way to access email that is kept on a mail server (e.g., Office 365). You manage your mail, mailboxes, and folders on the server, not on your computer. For example, messages stored on an IMAP server can be accessed from a computer at home, a workstation at the office, or a laptop computer while traveling, without the need to transfer messages or files back and forth between these computers. IMAP eliminates the need to move mail back and forth between the desktop and server.
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Symptoms
When you try to create an Outlook profile or connect to a Microsoft Office 365 mailbox, you're continually prompted for credentials while the client displays a 'trying to connect...' message. If you cancel the credentials prompt, you receive the following error message:
The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.
Cause
This issue can occur if the Logon network security settingon the Security tab of the Microsoft Exchange dialog box is set to a value other than Anonymous Authentication.
Resolution
Note
Microsoft Outlook 2016 and some recent builds of Outlook 2013 are not affected by this issue. Those versions have been updated to prevent the problem that is described in the 'Symptoms' section. These versions have the Logon network security setting disabled or removed from the Microsoft Exchange email account settings.
For newer versions of Outlook
You may be an Office 365 customer who is experiencing the error that is described in the 'Symptoms' section when you try to connect to an Exchange Online mailbox. You may also already be running newer versions of Outlook 2013 or Outlook 2016. If both conditions are true, we highly recommend that you use the Outlook keeps asking for my password diagnostic to troubleshoot issues in which Outlook continually prompts for a password.
This diagnostic does automated checks and returns possible solutions for you to use to try to fix any detected issues.
If you are connecting to an Exchange On-Premises mailbox, see the following articles for additional troubleshooting:
Additionally, you can view the following forum thread for common causes:
For affected versions of Outlook
If you have an older version of Outlook, change the Logon network security setting to Anonymous Authentication to fix this issue. To do this, follow these steps:
![]() More Information
To locate and view the registry setting for Anonymous Authentication in the Outlook profile, follow these steps.
Important
Modifying the Outlook profile by using the 'Profiles' registry path is not supported and may cause your Outlook profile to be in an unsupported state.
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Important
Follow the steps in this section carefully. Serious problems might occur if you modify the registry incorrectly. Before you access it, back up the registry for restoration in case problems occur.
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