### A server with a nonverifying cert and no TLSA
### A server with a verifying cert and no TLSA
### A server with two MXs for which both TLSA lookups return defer
### A server with a nonverifying cert and no TLSA
### A server with a verifying cert and no TLSA
### A server with two MXs for which both TLSA lookups return defer
### A server with a nonverifying cert and no TLSA
### A server with a verifying cert and no TLSA
### A server with two MXs for which both TLSA lookups return defer
### A server with a nonverifying cert and no TLSA
### A server with a verifying cert and no TLSA
### A server with two MXs for which both TLSA lookups return defer