Domains with DNS TXT v=spf1 a mx include:mail.zendesk.com ip4:200.30.128.140 ip4:165.98.52.4 ip4:190.124.36.143 ip4:200.30.128.251 ip4:200.30.128.252 ip4:186.176.215.110 include:servers.mcsv.net ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:mail.zendesk.com ip4:200.30.128.140 ip4:165.98.52.4 ip4:190.124.36.143 ip4:200.30.128.251 ip4:200.30.128.252 ip4:186.176.215.110 include:servers.mcsv.net ~all.