And when i manually set up the account settings, OUTLOOK cannot find the SERVER to connect. No longer are there windows to choose additional PROXY SETTINGS under CONNECTIONS. Therefore I deleted the account and tried to set up as a NEW account. Now restart the machine and recreate the Outlook profile. Search: Microsoft Outlook Cannot Connect To The Server. I went to REPAIR the account- REPAIR was grayed out. Locate the following key HKEY_CURRENT_USER\Software\Microsoft\Office\x.0\Outlook\AutoDiscover and add the following DWORD 'ExcludeExplicitO365Endpoint' (without the quote marks) and give it a hex value of 1. Open up the registry (back it up first!! If you break it, it's not my fault!) by going to Start > type 'regedit' and hit enter. The network device can be a load balancer or another network device, as described in Certificate Selection and Validation.
The fix is to put a registry key in place to tell Microsoft NOT to exclusively look to Microsoft servers for Autodiscover settings if it has the email address listed on its systems. If you need to connect to Exchange 2007, you can disable the automatic upgrade by setting the following registry key (create the keys if they are missing): HKEYLOCALMACHINESOFTWAREPoliciesMicrosoftoffice15.0commonofficeupdate. After you configure a network device to require certificate validation between Outlook and Exchange Server 2019, 2016, or 2013, you experience connection failures in Outlook clients.
After the update Outlook has problems connecting or setting up in the first place. Once it connects, then your connectivity issue is solved, but if it’s still not connecting then move onto the next troubleshooting tip. For example we have had clients who have setup a microsoft account with their email address (mailbox hosted somewhere else) in order to use the Microsoft app store. Now look at the bottom of your Outlook window, it should show something saying ‘Trying to Connect’. You must connect to Microsoft Exchange with the current profile before you can synchronize your folders with your Outlook data file (.ost)' On the Dell Optiplex wireless micro PC, he can get Outlook to open, but the last email is dated (and as of this post its 9/20.
We have found that a recent update (October 2018) to Office 365, has caused a problem whereby Outlook insists that IF your email address is linked somehow to a Microsoft account then you must be trying to connect to a Microsoft hosted mailbox instead of one hosted elsewhere.