Domains with DNS TXT v=spf1 mx a ip4:193.33.214.79 include:_spf.mailersend.net include:_spf.relay.mailprotect.be include:eu.mailgun.org include:mailswitch.nl -all
There is 1 domain that have DNS TXT set to v=spf1 mx a ip4:193.33.214.79 include:_spf.mailersend.net include:_spf.relay.mailprotect.be include:eu.mailgun.org include:mailswitch.nl -all.