A cross-platform C++17 library for MIME format and SMTP, POP3, IMAP protocols.
mailio is a cross-platform C++ library that implements the MIME format and the SMTP, POP3, and IMAP email protocols. It allows developers to programmatically send, receive, and parse email messages directly within C++ applications, handling encoding, headers, and protocol communication.
C++ developers building applications that require email functionality, such as automated notification systems, email clients, or backend services that interact with mail servers.
It provides a native, lightweight, and RFC-compliant solution for email handling in C++, eliminating dependencies on external email clients or complex third-party services.
mailio is a cross platform C++ library for MIME format and SMTP, POP3, IMAP protocols. It is based on the standard C++ 17 and Boost library.
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Implements SMTP, POP3, and IMAP with SSL/TLS, enabling full email sending and receiving capabilities directly in C++ applications, as shown in the README examples.
Supports recursive MIME parsing and formatting, multiple encodings like Base64 and Quoted Printable, and configurable line length policies for robust message processing, per the features list.
Works on Linux, Windows, FreeBSD, macOS with various compilers, and integrates with build systems like CMake, Vcpkg, and xmake, as detailed in the setup section.
Lacks support for non-ASCII folder names, idle command, and other advanced IMAP features, as acknowledged in the project's issues list under 'IMAP supports only ASCII folder names' and 'IMAP lacks the idle support'.
Requires Boost 1.81+ built with OpenSSL support, which can complicate the build process and increase the footprint of applications, as noted in the setup instructions needing Boost and OpenSSL in the path.
Does not offer asynchronous I/O, which may limit performance in high-concurrency scenarios, with 'Asynchronous I/O' listed as a planned future improvement in the issues.