imap-proto and tokio-imap

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tokio-imap and imap-proto are maintained by Dirkjan Ochtman. If you depend on these projects, please support the project via GitHub Sponsors or contact me for support.

tokio-imap: futures-based IMAP client

A Tokio stack-based, fully asynchronous IMAP library, with strong focus on following the relevant specs, mainly IMAP4rev1, but with limited support for the Conditional STORE extension. The type system is used to help enforce correctness where possible. So far, there is only client code and lots of infrastructure that supposedly could be shared -- no server yet. (If you want a tokio-based server, look at IMAPServer.)

Feature highlights

• Fully asynchronous by using tokio-core and tokio-io
• Uses the type system to help enforce correct operation according to spec
• nom-based parser (in imap-proto), so far only used for server response messages

Limitations

• Alpha-level implementation -- no tests yet, limited protocol coverage
• Server is totally unimplemented at this stage

How to get started

Have a look at the mailsync crate for example usage.

imap-proto: IMAP types and protocol parser

imap-proto is a low-level IMAP protocol support crate, using the type system to provide a safe API. It was extracted from tokio-imap into a separate crate so that different protocol implementations can share it as common infrastructure (as proposed by rust-imap contributors). The code tries to closely follow the IMAP4rev1 RFC, plus extensions.

Protocol support is implemented in three parts:

• Types that attempt to closely reflect specification requirements
• A parser implementation to help consume protocol messages
• Builder types to help produce protocol messages

Progress

• Client
  • Parser: many common server responses implemented
  • Types: most common types implemented
  • Message builder: most common commands implemented
• Server
  • Parser: not started
  • Types: not started
  • Message builder: not started