Rust

Get an IMAP Mailbox Quota

Demonstrates the Chilkat Imap.GetQuota method, which sends the IMAP GETQUOTA command for a quota root and returns the server response as JSON. The server must advertise the IMAP QUOTA extension. This example queries the default quota root.

Tip: JSON parsing code for this result can be generated at Chilkat Tools.

Background: Mail servers often cap how much storage an account may use. The IMAP QUOTA extension reports the current usage and limit for a quota root — a scope that may cover one mailbox or a whole account. Reading it lets an application warn a user who is nearing their limit, or refuse to append large messages that would exceed it. Check HasCapability for QUOTA first, since not all servers support it.

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Rust


// Demonstrates the Imap.GetQuota method, which sends the IMAP GETQUOTA command for a quota
// root and returns the server response as JSON.  The server must advertise the IMAP QUOTA
// extension.

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;
}

// Get the quota for a quota root (an empty string queries the default quota root).
let Ok(quota_json) = imap.get_quota("") else {
    println!("{}", imap.last_error_text());
    return;
};

println!("{}", quota_json);

// JSON parsing code for this result can be generated at Chilkat's online tool:
// https://tools.chilkat.io/jsonParse

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