如何标记看不见的最后未读消息 S22.imap

Question

如何从邮箱中读取最后一条未读消息并将此消息标记为“未读”

我使用 s22.imap.dll

ImapClient Client = new ImapClient("imap.gmail.com", 993, "My_Username",
    "My_Password", true, AuthMethod.Login);

// Get a list of unique identifiers (UIDs) of all unread messages in the mailbox.
uint[] uids = Client.Search( SearchCondition.Unseen() );

// Fetch the messages and print out their subject lines.
foreach(uint uid in uids) {
    MailMessage message = Client.GetMessage(uid);

 Console.WriteLine(message.Subject);
}

// Free up any resources associated with this instance.
Client.Dispose();

Answer 1

首先获取uid最后一条未读消息：

var lastUid = Client.Search( SearchCondition.Unseen().Last() );

并阅读此消息；

MailMessage message = Client.GetMessage( lastUid );

将此消息标记为“未见”：

Client.RemoveMessageFlags( lastUid, null, MessageFlag.Seen );

查看更多关于：ImapClient.RemoveMessageFlags 方法