发送邮件出现以下错:
Delivery to the following recipient(s) failed: palash@zaastex.com : 550-mail.×××.com [××202.247.98]:2412 is currently not permitted to relay550-through this server. Perhaps you have not logged into the pop/imap
server 550-in the last 30 minutes or do not have SMTP Authentication turned
on in your 550 email client. (in reply to RCPT TO command)