mailchimp.com/TXT: No response was received until the UDP payload size was decreased, indicating that the server might be attempting to send a payload that exceeds the path maximum transmission unit (PMTU) size. See RFC 6891, Sec. 6.2.6. (2600:1406:32::42, UDP_-_EDNS0_4096_D_KN)
mailchimp.com/DNSKEY has warnings; select the "Denial of existence" DNSSEC option to see them.
mailchimp.com/AAAA has warnings; select the "Denial of existence" DNSSEC option to see them.
w8o7kq1tvr.mailchimp.com/A has warnings; select the "Denial of existence" DNSSEC option to see them.