Outlook imap issue

[Raj_Gupta]

While configuring IMAP, We are getting below errors attached in the screenshots. 

The PHP INI file has "IMAP" enabled. 

Our passwords are correct. 
Error Message: (E_WARNINGJ Authentication failed for user imap_open(): Couldn't open stream {outlook.office365.com/imap/551/nova1idate-cert}

[#2]

@Raj_Gupta 

Please double check on follow:

1. Server Settings: Ensure that the IMAP server address and port number are correct.
2. SSL/TLS Settings: Verify if your server requires SSL/TLS and that it’s correctly configured.
3. Firewall/Antivirus: Sometimes, these can block IMAP connections. Make sure they are not interfering.
4. PHP Extensions: Confirm that the php-imap extension is installed and enabled in your PHP configuration.

[#3]

@Kidd_Ip Thanks for the reply.
We have reviewed all the points you mentioned, yet the same error persists.

[#4]

My IMAP and OPENSSL settings are enabled. Configuration works fine on Gmail.
The settings I am using are:
Host: outlook.office365.com
Port: 993
Email: {my_email}
Password: {password}

[#5]

We are waiting for your response. Kindly get back to us at your earliest convenience.

[#6]

Please reply