We recently bought a new domain & now when ever we send out an email via that domain to any symantec client we receive the specified reject.
[216.82.250.19] #<[216.82.250.19] #5.0.0 smtp; 5.3.0 - Other mail system problem 553-'Message filtered. Refer to the Troubleshooting page at\nhttp://www.symanteccloud.com/troubleshooting for more\ninformation. (#5.7.1)' (delivery attempts: 0)> #SMTP#
Our domain is PATNAT.com & IPs are 64.135.90.57