Forum Discussion
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 credentia...
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.
Dear SalmanAhmed
Thank for your respond
But when use other app mail client (Mail, Thunderbird ...), I don't see similar problems!!!
Best regards.
Thank for your respond
But when use other app mail client (Mail, Thunderbird ...), I don't see similar problems!!!
Best regards.
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.
I have the below suggestions:
- Please check "Require logon using SPA (Secure Password Authentication)" for both incoming and outgoing
- If not resolved from the above step, select Encryption method to "Auto"
Outlook Configuration
