We have recently switched to a new ISP and a new firewall. I am not able to send emails to one person. This is the error message, I am getting "Error transferring to cluster9.us.messagelabs.COM; SMTP Protocol Returned a Permanent Error 553 http://www.mail-abuse.com/enduserinfo.html" How can I resolve this?
July 29, 2009 6:23 PM
July 29, 2009 8:05 PM