Fetch Messages

Fetches messages from the selected IMAP mailbox.

Code

using DRIT.Mail.Rfc.Imap;

var options = new ImapClientOptions
{
    Host = "imap.example.com",
    Port = 993,
    SslMode = ImapSslMode.Ssl,
    Credentials = new System.Net.NetworkCredential("user", "password"),
};

using var client = new ImapClient(options);
client.Connect();
client.Authenticate();
client.SelectMailbox("INBOX");

// Fetch message envelopes (headers) for the first 10 messages
var fetchOptions = new ImapFetchOptions
{
    Envelope = true,
    Flags = true,
};

var messages = client.Fetch(1, 10, fetchOptions);
foreach (ImapMessageInfo info in messages)
{
    Console.WriteLine($"#{info.SequenceNumber}: {info.Envelope.Subject}");
    Console.WriteLine($"  Flags: {info.Flags}");
}

// Fetch the full body of a specific message
byte[] raw = client.FetchBody(1);
// Parse with MimeMessage.Load(new MemoryStream(raw)) if needed

client.Disconnect();

Remarks

Use ImapFetchOptions to control which parts of a message are downloaded. Fetching only envelopes is much faster than fetching full bodies.