ERROR: Too many MX Resource Records when checking SPF record

Last Modified

Tue Jan 21 08:39 GMT 2020


  • I use N-able Mail Assure for outbound mail
  • When I check the SPF record I get the error: Too many MX resource records


  • N-able Mail Assure


  • Mail Assure does not use the inbound filtering hosts to send mail
  • The outbound servers are listed on the SPF record:
  • When configuring your SPF record for Mail Assure:
    • Add:
    • Remove: mx
  • If mail for your domain will only be sent through Mail Assure your SPF record should be: v=spf1 -all