(.NET Core C#) IMAP Delete Old Email (before a specified date)

Demonstrates how to delete email older than a particular date.

Note: This example requires Chilkat v11.0.0 or greater.

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bool success = false;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Imap imap = new Chilkat.Imap();

// Connect to an IMAP server.
// Use TLS
imap.Ssl = true;
imap.Port = 993;
// Use your IMAP server domain.  This example 
success = imap.Connect("imap.example.com");
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

// Login
success = imap.Login("myLogin","myPassword");
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

// Select an IMAP mailbox
success = imap.SelectMailbox("Inbox");
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

// Get message ID's for emails older than 1/1/2025
bool fetchUids = true;
Chilkat.MessageSet messageSet = new Chilkat.MessageSet();
success = imap.QueryMbx("SENTBEFORE 01-Jan-2025",fetchUids,messageSet);
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

// If desired, we can examine the Subject of each email to be deleted..
Chilkat.Email email = new Chilkat.Email();
int i = 0;
int count = messageSet.Count;
bool headerOnly = true;

while (i < count) {
    success = imap.FetchEmail(headerOnly,messageSet.GetId(i),true,email);
    if (success == false) {
        Debug.WriteLine(imap.LastErrorText);
        return;
    }

    Debug.WriteLine(email.LocalDateStr);
    Debug.WriteLine(email.Subject);

    i = i + 1;
}

// Set the Deleted flag for each message:
success = imap.SetFlags(messageSet,"Deleted",1);
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

// Expunge and close the mailbox.
success = imap.ExpungeAndClose();
if (success == false) {
    Debug.WriteLine(imap.LastErrorText);
    return;
}

// Disconnect from the IMAP server.
success = imap.Disconnect();