Cannot Connect To Office 365 On Mac Outlook App

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Hello and welcome to Apple Support Commmunities Geistwolke,
If I'm understanding your post right, you're receiving a 'Cannot connect to server' error for your Outlook.office365.com email account on your iPad. If you're anything like me, you rely a lot on being able to send and receive emails from all of your devices. I can understand why it's important for this to be working properly, and I'm happy to help you with a resolution!
First, make sure your iPad has a cellular-data or Wi-Fi connection by opening Safari and navigating to https://www.apple.com. After that, check the settings that you're using for your email account using the Mail Settings Lookup Tool as seen in If you can’t send or receive emails on your iPhone, iPad, or iPod touch:

  • Alternatively, you can try to connect your Exchange or Office 365 account using a different network. Sometimes employees are banned from logging into their work accounts outside the office. Ask your administrator if this is a restriction. If you use a VPN, we can’t guarantee Spark will work properly.
  • As an FYI - If you're an Office 365 user, you can get access to Outlook 2016 for Mac which my team reports is performing well. The standalone version of this will be available to the public in September. Hope this information helps you out! Please let me know if I can be of further assistance.

Check your settings

2637629 How to troubleshoot non-browser apps that can't sign in to Office 365, Azure, or Intune; Cannot view free/busy information in the Outlook calendar. Knowledge Base articles. Mac anti sleep app. 2555008 How to troubleshoot free/busy issues in a hybrid deployment of on-premises Exchange Server and Exchange Online in Office 365; 2581088 How to troubleshoot.

When you set up your email account on your device, iOS automatically uses the correct account settings for many email providers.

To make sure that your account settings are correct, compare the settings in the Mail app to the settings for your email account:

  1. Go to Settings > Mail > Accounts and tap your email account.
  2. Tap your email address next to Account to see the account information, such as the incoming and outgoing mail servers.
  3. Check the recommended settings for your email account in the Mail Settings Lookup tool and make sure that they’re the same as what you see on your screen. If you don’t see the settings for your email account, contact your email provider or system administrator.

If you have a POP3 email account, then you can only check email on one device at a time. Close other email programs and sign out of webmail sites that you have open. To check if your email is a POP3 account, go to Settings > Mail > Accounts, tap your account, and look for the label POP Account Information. You can also check the recommended email settings for your POP3 email account in the Mail Settings Lookup tool.

If your email provider requires your account to use port 25, then you can only send email when you’re connected to your email provider’s network. Check with your email provider for settings and availability.


You can also view information on setting up your email account using the correct server settings here: Microsoft: Set up email using the iOS Mail app - Office 365 work or school.
If the recommended settings are the same you see in the Mail app on your iPad, follow the 'If you still need help section' of the aforementioned support article:

Contact your email provider or system administrator

  1. Contact your email provider or check their status webpage to see if there's a service outage.
  2. Ask your email provider or system administrator if you turned on any security features or restrictions, like two-step verification, for your email account. You might need a special password or need to request authorization from your email provider to send and receive email on your device.
  3. Check your email account settings with your email provider or system administrator to make sure that they're correct.

Let me know if you continue to run into this same issue after following all the steps I've mentioned.
Thanks for using Apple Support Communities.
Take care!

Oct 13, 2017 9:57 AM

Connect Outlook 2010 To Office 365


Topics Map > Client Configuration > Desktop

This document explains how to connect to the Office 365 service via Outlook for Mac client.

Configure Outlook

Outlook For Mac Cannot Connect To Office 365

If you currently do not have Office/Outlook installed on your computer, please follow these instructions to install Office/Outlook before proceeding.

Warning: Before proceeding, make sure you have updated Outlook to the latest version (patch) currently available. If you do not update Outlook before proceeding, the potential exists that you will be unable to configure your account to Office 365 (you will receive an error during the configuration process).

Outlook

Important: In addition to configuring your NetID account, this document also contains instructions on how to configure a Service Account. The recommended configuration for Service Accounts within Outlook is to have the Service Account linked to your NetID account and then to use the delegation feature to interact with the Service Account.

Microsoft Outlook for Mac uses profiles to manage your accounts within Outlook.

  1. You have three options on configuring your Outlook profile:
    Option 1: First time user of Outlook (no existing profile).
    Launch Outlook to start the account creation wizard. If prompted for type of account, select Exchange or Office 365. Proceed to step 2.
    Option 2: Create a new profile.
    Make sure Outlook is not running.
    1. Follow these steps to create a new profile.
    2. Proceed to step 2.
    Option 3: Add your account to an existing profile.
    Launch Outlook.
    1. Go to 'Tools' menu and click the Accounts selection.
    2. Select New Account.. from the + menu selection located at the bottom left corner of the 'Accounts' screen.
    3. Proceed to step 2.
  2. On the Setup your email window, enter the email address of the account you are attempting to configure:
    • Email Address format: -
      • NetID Account: Enter the primary address of your NetID account which will take one of the following forms: netid@wisc.edu or first.lastname@wisc.edu or name@domain.wisc.edu
      • Service Account: Enter the primary address of your Service account which will take one of the following forms: name@domain.wisc.edu

      Note: if you don't know whether you are attempting to configuring a NetID account or a Service account, please contact your domain administrator or the DoIT HelpDesk.

  3. If you receive the following prompt:
    Place a check mark within the 'Always use my response for this server' check box.
    Click Allow.
  4. You will be redirected to NetID login screen - enter the credentials of the account you are attempting to configure.
    Please note: If you receive an error message that your account is unable to be auto-configured, please make sure that your Outlook client is fully updated to the newest version (patch) currently available.
    If this is your first time setting up this client: You may receive the following notification:
    Click Activate and follow the instructions using your NetID to login when asked to activate the software.

Important:

  • Depending on the size and amount of emails you have in your account, Outlook may require some time to completely download all of your mail (and other data) the first time you load Outlook after configuring your account.
  • If you are having issues interacting with the configured account or with other accounts, please verify you have authenticated into Outlook before contacting the help desk.

Optional - Configure Access to the Campus Directory (Whitepages)

Remember: the Global Address List (GAL) will only contain Office 365 accounts. Therefore, you may still need access to the Campus Directory (Whitepages) to find the person you are searching for.

Outlook 2010 Can't Connect To Office 365

Use these instructions to configure the Campus Directory (Whitepages) within this client.

Microsoft Outlook 365 Can't Connect To Server

Cannot

Outlook Cannot Connect To O365

Uninstall Outlook/Office

Outlook Cannot Connect To Office 365 Email

You may experience issues with Outlook for Mac that are often resolved by performing a full uninstall/reinstall of Microsoft Office. The following Microsoft documentation provides instructions on how to completely uninstall Microsoft Office on your Mac: Troubleshoot Office 2016 for Mac issues by completely uninstalling before you reinstall.

See Also: