Email problem, pls help me!
ERROR: One or more of your mailservers does not accept mail to postmaster@diamondplaza.com.vn. Mailservers are required (RFC822 6.3, RFC1123 5.2.7, and RFC2821 4.5.1) to accept mail to postmaster.
diamondplaza.com.vn's postmaster response:
>>> RCPT TO:<postmaster@diamondplaza.com.vn>
<<< 550-test.dnsstuff.com (test.DNSreport.com) [69.2.200.182] is currently not
550-permitted to relay through this server. Perhaps you have not logged into
550-the pop/imap server in the last 30 minutes or do not have SMTP
550 Authentication turned on in your email client.
How to fix this error in my server?
Thanks
