SMTPTransporter: Signing emails with S/MIME
S/MIME (Secure/Multipurpose internet Mail Extensions) is a protocol used to digitally sign emails. An S/MIME signature helps recipients verify two imp...
October 21, 2026
1 min read
Email, Microsoft 365, Gmail
Stay synchronized with Google and Microsoft 365 with 4D NetKit Notifications
Modern applications are expected to react instantly to changes. Whether a new email arrives, a calendar event is updated, or an item is deleted, users...
July 13, 2026
1 min read
Instant Email Notifications with IMAP Transporter
Modern users expect email notifications appear instantly when a new email arrives. 4D 21 R3 introduces support for IMAP IDLE notifications, bringing r...
May 5, 2026
1 min read
Goodbye 4D Internet Commands – Hello Modern Internet Integration
With the release of 4D 21, we’re officially saying goodbye to the 4D Internet Commands plugin, a long-standing companion for many developers since the...
November 17, 2025
1 min read
4D NetKit: Secure OpenID Authentication with nonce attribute
When working with modern authentication flows, security is paramount. Developers often need to integrate authentication with trusted identity provider...
October 21, 2025
1 min read
4D NetKit: Decoding, Generating, and Validating JWT
JSON Web Tokens (JWT) have become a key standard for secure authentication and information exchange between systems. With JWT, you can transmit data i...
October 17, 2025
1 min read
4D NetKit: Simplifying OAuth 2.0 Redirects after authentication
4D NetKit just made redirecting users after OAuth 2.0 authentication easier with 4D 21. The OAuth2Provider class in 4D NetKit now allows real URLs for...
October 15, 2025
1 min read
Managing Calendar Events with Microsoft 365 or Google in 4D: Create, Update, Delete
Working with calendar events is a core part of many business applications. Whether you're organizing a team meeting or managing an event’s life cycle,...
July 17, 2025
1 min read
4D NetKit: Get Google and Microsoft 365 calendar events
Managing calendars and events is crucial for many applications, especially when integrating with popular services like Google Calendar and Microsoft 3...
April 24, 2025
1 min read
4D NetKit: Use your web server host ports to retrieve your OAuth 2.0 authentication response
When using OAuth 2.0 authentication with 4D NetKit, you must define a redirect URI to indicate where the OAuth 2.0 server should return the authentica...
April 23, 2025
1 min read