Running Merak mail server, had some proplems months ago with dns and rdns, got that squared away, everything has been fine, now starting to get mail back again.
Returned mail: could not connect and send the mail to cluster6a.us.messagelabs.com, while issuing MX query to 188.8.131.52
554 DNS server responded with 3 (Domain Not Found).
184.108.40.206 is the dns NewEdge networks gave me, it has always worked.
my mail server is mail.usafirewalls.com.
Could this be a problem with my isps dns?
i do use dnsmadeeasy.com to resolve and change my sites quicker.
But dnsmadeeasy and newedge assured me this was ok. as I said it has been running fine until a couple of days ago?