Our domain can't send mail to any Gmail account anymore.
We just get the following error bounces back to us.
mx.google.com #530-5.5.1 Authentication Required. Learn more at 530 5.5.1
http : // mail. google .com /support/bin/ answer.py?answer=14257n7sm3995390ano.17 ##
(added som spaces since im not allowed to post url's yet
I have testet our DNS settings with MXtoolbox.com
I have testet our Sender ID and SPF files.
I can connect to all the gmail mx servers with telnet.
I have restarted the server.
Same error in outlook 2007,2010 or OWA.
This started after a upgrade to SP3.
Can anyone help me??
Thanks in advanced.