Due to Google/Microsoft decided to cancel basic authentication, if your application is outdated or less functionality to have the modern XOAUTH2 authentication, you will not able to access their services.
That's the reason you may need OAuth2 Proxy. It features belows:
Localhost connection only
It only binds 127.0.0.1 which means it only provides localhost connection for security issue. We also provide EXPERT version for those who needs to accept not only localhost but also connections from other IP addresses.
SMTP, POP3 and IMAP4
It turns basic authentication (with any password) into modern XOAUTH2 authentication to access SMTP, POP3 and IMAP4 services of Gmail and Outlook.
Refresh Token automatically
It manages token availability automatically.
Instantly installation, Instantly use with ease.
Just like our company's consistent software design philosophy, the primary design point is simplicity.