Forum Discussion
Tran_Hoa_Binh
Oct 28, 2021Copper Contributor
Problems authencation many times on Outlook Express
Dear all
I have problems on OE 2010, 2013, 2016, O365 ...
I have tried the following ways:
- Search Credential Manager in the search bar Windows Credentials Delete all the Microsoft credentials Add a generic credential called Outlook and add the username/password that will be used.
- Change new password and create a new user profile through control panel Reload outlook.
- Test connect to Mail server system is good
But still have problems.
If use Mail app on Windows 10; Thunderbird then I don't any problem.
Please help me.
Many thanks & best regard.
- SalmanAhmedSteel Contributor
Hi Tran_Hoa_Binh,
As I can see from the screenshot which you've shared, it seems that:
- It might be an IMAP server configuration issue
- Try to reset your password
- Switch the IMAP configuration to SSL (From port 143 to 993) if it's not secure.
- Check your Windows Firewall, modify inbound rules, and add the port to "Allow the connection"
- Contact your service provider, if they did any changes on the mail server, they need to provide a new configuration.
- Tran_Hoa_BinhCopper ContributorDear SalmanAhmed
Thank for your respond
But when use other app mail client (Mail, Thunderbird ...), I don't see similar problems!!!
Best regards.- SalmanAhmedSteel Contributor
You're most welcome. It seems that there is no issue with your password, firewall, and service provider's side. However, it might be a server configuration issue or caused by the port specification, and outlook is unable to detect it. It will be more transparent if you share a screenshot of the server configuration with the default port.