Rust

Fetch an IMAP Message as MIME Text

Demonstrates the Chilkat Imap.FetchSingleAsMime method, which downloads one message and returns its MIME source as a string. If the second argument (bUid) is true, the first argument is a UID; otherwise it is a sequence number. This example fetches message 1's raw MIME.

Background: Sometimes you want the message exactly as it exists on the server — the raw MIME — rather than a parsed Email object. That is what you save to a .eml file, feed to another parser, or archive verbatim. This method returns the MIME as text; for messages that may contain binary data, the BinData variant FetchSingleBd preserves the exact bytes.

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Rust


// Demonstrates the Imap.FetchSingleAsMime method, which downloads one message and returns
// its MIME source as a string.  If the 2nd argument (bUid) is true, the 1st argument is a
// UID; otherwise it is a sequence number.

let imap = chilkat::Imap::new();

imap.set_ssl(true);
imap.set_port(993);

if imap.connect("imap.example.com").is_err() {
    println!("{}", imap.last_error_text());
    return;
}

if imap.login("user@example.com", "myPassword").is_err() {
    println!("{}", imap.last_error_text());
    return;
}

if imap.select_mailbox("Inbox").is_err() {
    println!("{}", imap.last_error_text());
    return;
}

// Download message sequence number 1 and return its raw MIME.  bUid = false.
let Ok(mime) = imap.fetch_single_as_mime(1, false) else {
    println!("{}", imap.last_error_text());
    return;
};

println!("{}", mime);

if imap.disconnect().is_err() {
    println!("{}", imap.last_error_text());
    return;
}