MailCore/mailcore2

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

2695 stars · 649 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

MailCore 2 is a C++/Objective-C library providing a simple, asynchronous API for working with email protocols IMAP, POP, and SMTP. It includes an RFC822 parser/generator, HTML message rendering, and builds for iOS, macOS, Android, Windows, and Linux.

Use cases

• fetch email headers and messages over IMAP asynchronously
• send email via SMTP from an iOS or Mac app
• parse and generate RFC822 email messages
• build a mail client UI with HTML message rendering
• access POP3 mailboxes from a mobile app
• integrate email sending/receiving into a cross-platform C++ app

When to choose

• you need native IMAP/POP/SMTP support in an iOS, macOS, or Android app
• you want asynchronous email operations that don't block the main thread
• you need an RFC822 MIME parser and generator in C++ or Objective-C

When to avoid

• you need a high-level managed email API in Python, Java, or JavaScript
• you only need to send transactional email via an HTTP API like SendGrid
• you need a full-featured mail client application rather than a library
• you require actively developed features, as the project is largely in maintenance mode

Facets

library · maturity maintenance

email http-client parser email developer-tools cross-platform windows cpp imap smtp pop3 rfc822 objective-c async-api mail-client-library ios macos android linux

Member repositories

For agents

markdown · JSON · MCP: product_card(name="MailCore/mailcore2")