Nette Mail is a standalone PHP library for creating and sending emails with support for SMTP, sendmail, DKIM signing, and fallback mechanisms. It provides a clean API for composing emails with HTML/text bodies, attachments, embedded images, and automatic text alternative generation. The architecture follows a modular design with separate concerns for message creation (Message/MimePart), sending (multiple Mailer implementations), signing (DkimSigner), and HTML processing (HtmlComposer, CssInliner). The library is framework-agnostic but integrates well with Nette DI and Tracy debugging tools.

nette/http is a standalone PHP library providing HTTP abstraction for request/response handling, URL manipulation, session management, and file uploads. It is part of the Nette Framework ecosystem but is usable independently. The library offers immutable `Request` and `UrlImmutable` objects for safe processing, alongside mutable `Response` and `Session` for stateful operations. It includes security-focused features such as input sanitization, CSRF protection via `Sec-Fetch-*` headers (with fallback), SSRF protection via `UrlValidator` and `IPAddress`, and a proxy trust model for client IP resolution behind reverse proxies. The codebase is well-structured, with clear separation of concerns, comprehensive test coverage (Nette Tester), and strict static analysis (PHPStan level 8). It requires PHP 8.3-8.5 and depends on `nette/utils`. The repository is actively maintained with recent commits, CI on multiple OSes, and an issue tracker.