Domains with DNS TXT v=spf1 a mx a:bluemind.centaur-mail.de include:mx-spf.centaur-mail.de include:spf.hornetsecurity.com include:stadt-heilbronn.de -all
There is 1 domain that have DNS TXT set to v=spf1 a mx a:bluemind.centaur-mail.de include:mx-spf.centaur-mail.de include:spf.hornetsecurity.com include:stadt-heilbronn.de -all.