DNS Errors and Missing records

I found may errors in my domain, but we have configured the A records, both dns are responding, why? because i have another domain - Removed - and all is working. I have the same configuration in example.mx and example.com Here the errors 1Nameservers A records ERROR: Some of your DNS servers do not have A records at all. I could not find any A records for the following DNS servers: ns1.example.mx ns2.example.mx You must have A records for all of your nameservers. ************************************************************************** Mismatched NS records WARNING: One or more of your nameservers did not return any of your NS records. DNS servers responded ERROR: One or more of your nameservers did not respond: The ones that did not respond are: ns2.example.mx ns1.example.mx *************************************************************************** Multiple Nameservers ERROR: Looks like you have less than 2 nameservers. According to RFC2182 section 5 you must have at least 3 nameservers, and no more than 7. Having 2 nameservers is also ok by me. **************************************************************************** Missing nameservers reported by your nameservers You should already know that your NS records at your nameservers are missing, so here it is again: ns1.example.mx. ns2.example.mx. ***************************************************************************** SOA Error SOA record No valid SOA record came back! MX Error MX Records Oh well, I did not detect any MX records so you probably don't have any and if you know you should have then they may be missing at your nameservers! WWW Error WWW A Record ERROR: I could not get any A records for example.com (I only do a cache request, if you recently added a WWW A record, it might not show up here.) I have anothers domains with the same issue.. and others without issues. The problem began when i detected that the emails from gmail are not being delivered to my domains. i am receiving the following error: DNS Error: 797636 DNS type 'mx' lookup of example.com responded with code SERVFAIL