![]() ![]() This issue mostly affects users with Bitdefender and Kaspersky Antiviruses. If after this you stop getting prompted for password, either disable the antivirus web scan or add our Exchange proxy servers to its exceptions. Correct domain and username information can be found in HostPilot under Services > Exchange Mailboxes > Actions > Edit User Info. In this case, use the Domain\Username format for the User Name field for all entries in Credential Manager. If users have their email addresses as local AD logins, then Outlook may keep prompting them for password.You may need to create another Windows user in order to have the ability to save the entries. If it is not included in the Domain, find the local policies that prevent the computer from saving entries.You may need to exclude the computer from the Domain to save the entries and then safely include it back. If it is in the Domain, find the domain policies that prevent the computer from saving the entries.If the Credential Manager entries disappear each time you reboot the computer, check if the computer is included in the Domain.Verify if these settings affect credential persistence by excluding the computer from the domain or setting all policies to default. Check local/domain security policy settings applied to the affected computer and user account. You will need to find local settings that prevent credentials from being saved correctly. There is no way to change Persistence in Credential Manager. If Persistence is Logon Session, that means that the password is saved only for the current logon session. If Outlook keeps prompting for a password after a reboot or logoff/logon, check the Persistence parameter of the entries created in Windows Control Panel > Credential Manager > Windows Credentials. The correct value for the Persistence parameter is Enterprise.Close the registry and check the option in Outlook again - it should still be greyed out but unchecked. ![]() Change or create a new DWORD with the name PromptForCredentials.create the key Office under Microsoft, then 16.0 under Office, etc.) until the path is built If any of the keys on this path do not exist, create them by right-clicking on the parent key > New > Key > copy and paste the exact name (eg. Navigate to HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\16.0\Outlook\Security.In the command box type regedit and press Enter Alternatively, click Windows Start > Run. Click on Windows Start, start typing registry and click on Registry editor when it will appear to open it.Important: Before making changes to the registry, make sure to create a backup of the registry. If the option is checked but at the same time greyed out, use the registry to uncheck it: checking that the option Always prompt for logon credentials is not checked in Outlook under File > Account Settings > double-click on your email address > More Settings > Security tab.If you've entered everything correctly, Outlook will stop prompting for password. Reopen Outlook - it might prompt for password one more time for each mailbox - make sure that the email address after Connecting to and in the Username field is the same, if it's not, click More choices > Use a different account and enter the correct username.After this, click the Refresh button in the Credential Manager - the SSPI entry should appear on the list. If one of the mailboxes is not listed, open Outlook - you should get prompted for credentials for that mailbox, enter the credentials and check the box for Remember my credentials. Do the same for each such entry - the result should be that all the mailboxes added to your Outlook profile should have the corresponding SSPI entry.Fill the User name field with the same email address as you see after SSPI: of this entry and click Save.Under Generic credentials find entries that start with MicrosoftOffice16_Data:SSPI:, click on one of them, then on Edit.Open the Credential Manager (click on Windows Start, start typing c redential and click on Credential Manager when it will appear) and switch to the Windows Credentials tab.Important: If you have more than one hosted Exchange mailbox configured in one Outlook profile, follow these steps to stop getting prompted for password: modifying Credential Manager entries manually.This tool runs a set of manual changes programmatically such as the addition of correct entries to your Credential Manager. running Save Outlook Credentials Tool.So, if Outlook 2016 or newer will not save the user's credentials, you may try: Unlike in the previous versions of Outlook, it is not possible to modify the preferred type of authentication.
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