Write a code to receive emails, but it prompts that the connection cannot be made. QQ mailbox has enabled imap. Paste the code below. Could you please help me?

$host = '{imap.qq.com:993/imap/ssl}INBOX'; $user = '*****'; $pass = '*****'; $inbox = imap_open($host, $user, $pass)or die("can't connect: " . imap_last_error()); $mailboxes = imap_list($inbox, $host, '*'); $mailboxes = str_replace($host, '', $mailboxes); print_r($mailboxes);

Paste the error code: From the Tencent mailbox, you can see that the address is imap.qq.com and it will prompt an error. .
Warning: imap_open(): Couldn't open stream {imap.qq.com:993/imap/ssl}INBOX in D:phpStudyWWWimap.php on line 5
can't connect: Please using authorized code to login. More information at http://service.mail.qq.com/cg...
Notice: Unknown: Please using authorized code to login. More information at http://service.mail.qq.com/ cg... (errflg=1) in Unknown on line 0