![]() ![]() We'll also see if this is the case if and when the other machines exhibit the behavior again OR if other users start having it. This has been observed on Windows 7 so far only, and with Outlook 2016 and Outlook 365 perpetual. Resolution Tip To diagnose and automatically fix several common Office sign-in issues, you can download and run the Microsoft Support and Recovery Assistant. So it appears a recent update somewhere made a change to SDXHelper.exe to reach a state that prevents Outlook from syncing properly. The authentication issue occurs because of missing package information about either the Active Directory Authentication Library (ADAL) or Live ID. Then, checked for office updates manually(it was already up to date). Launched outlook, and it instantly connected and all the messages left the outbox properly and continued syncing properly. I closed outlook, killed the outlook.exe process as it was stuck, then killed two instances of SDXHelper.exe that were there. Saw someone post something about it being the fault of SDXHelper.exe. Authentication Failed - Unable to add email account Emails fail to send / Sending error/ Emails stay in drafts Yahoo: 2 Factor Authentication, App password and Less secure apps Microsoft Office 365 OAuth 2.0 (modern authentication) support AOL authentication problems Articles in this section. Instead of nuking the profile, creds in cred manager, and the C:\Users\user\appdata\local\microsoft\outlook folder as I had been doing to those affected, (Something about checking ignored conversations) Yeah, it didn't really come back with anything. Have seen some reports on of people saying outlook won't sync only a few. Step 3: The Connect an email account screen appears, just like the first time you added an account to Mailspring. Step 2: In the menu that appears, click Add Account. ![]() Tenant has modern authentication active, but neither of the two users so far has two-factor enabled.Ĭhanged both users passwords in case it was some odd case of old or expired credentials somewhere. Step 1: From the Mailscreen main page, click the icon (hamburger menu) in the top right corner of Mailspring, just below the X button. Tried safe mode and ditching all add-ins but Exchange. Tried with and without ipv6 on on the NIC. Tried complete removal and upgrade from Outlook 2016 to Outlook 365 perpetual.Ĭhecked connectivity with the online MS tool - seems fine. ![]() Made sure TLS 1.2 is blah blah blah here since the switch. Then the user starts noticing stuff getting stuck in outbox and e-mail not rolling in. Outlook 2016 and also Outlook 365(Perpetual) on Windows 7(so far).Ĭompletely Nuking the outlook profile, all the entries in Credential Manager, and deleting the C:\users\user\appdata\local\Microsoft\Outlook contents and setting it back up fixes it for a while. Microsoft is researching this problem and will post more information in this article when the information becomes available.Have only happened to a couple of users so far. This issue does not occur in Outlook 2013. If possible, use Outlook 2013 instead of Outlook 2016 to connect to your IMAP account. In Mail, make sure that the Always use this profile option is selected, and then select your new profile name from the list. Correct the information in the account settings, and then repeat steps 9 and 10 until the account settings are correct. If you receive an error during the tests, click Close. If the tests are completed successfully, click Close. Your account settings will be tested to verify that they are correct: Note Go to your email server host's website or contact them to collect the incoming and outgoing mail server details. Select Manual setupor additional server types, and then click Next.Įnter your name and email address, and then select POP3 for the Account Type.Įnter your Incoming mail server and Outgoing mail server (SMTP) details, enter your logon information, and then click Next. Type a name for the profile, and then click OK. In Control Panel for Windows XP, type Mail in the Address box. To locate the Mail item, open Control Panel, and then in the Search box at the top of window, type Mail. In Control Panel, click or double-click Mail. Note The POP3 protocol downloads email to your local computer and removes it from the server, whereas IMAP leaves a copy of the email on the server. For more information, see Understanding the differences between POP3 and IMAP4. The following steps will create a new Outlook profile that's configured to connect by using POP3. You may be able to configure your email account to use POP3 instead of IMAP if your email server supports POP3 connections. ![]() Method 2: Use a different protocol than IMAP To work around this issue, use one of the following methods.Ĭhange your password so it no longer contains any Unicode characters. This issue may occur because you have a Unicode character in your password, such as one of the following: When you use IMAP to connect to your email account in Microsoft Outlook 2016, authentication fails. ![]()
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