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To do this, open Outlook, on the taskbar, select the File tab, go to Information, then select Account and Social Network Settings. You can try to recover your Outlook account using the application itself. Then restart Outlook and check if the error that causes Outlook to be unable to connect to the server is resolved. After that enter msstd: URL, select Basic Authentication under Proxy Authentication Settings. Then select the following options: Connect using SSL only, connect only to proxy servers that have this primary name in their certificate. In the Exchange Proxy Settings section, specify the proxy server, enter the URL to connect to the proxy server.
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Open your email account and click Change, then click Advanced Settings and select Connect to Microsoft Exchange using HTTP. Try setting up a connection to a proxy server: open Outlook, then go to File, then click on Information-> Account and Social Network Settings-> Account Settings.Save your changes and check if the bug causing Outlook to be unable to connect to the server has been fixed. On the Advanced tab, go to the Outgoing Mail Server section and select SSL as the encrypted connection. In Account Settings, select your email account, click Change, then click Advanced Settings. In the Outlook app, go to File, go to Information, open Account and Social Settings. Try using SSL to connect to Microsoft Exchange Server.
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Then restart Outlook and check if the error is fixed. If it doesn't work, fix the connection to Microsoft Exchange Server. Notice the indicator next to the Exchange account. Then go to the File tab, select Information, then click on Account and Social Settings and open the Account Settings tab.
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Better yet, try opening Outlook on a different device and see if the “Outlook cannot connect to server” error occurs. Connect another computer or laptop to the same network and check the Internet connection. If your computer is not connected to the network, you will definitely receive the error "Outlook is not connecting to the server." Therefore, try checking your network connection.To do this, open Outlook, go to the Send / Receive tab, and reconnect the "Work Offline" option. Also, you need to make sure Outlook is online.If Outlook cannot connect to the server, you need to check if the account credentials and exchange server name are correct.
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