Domains with DNS TXT v=spf1 mx a include:_spf.webhosting.systems a:mail.ctb-it.de -all
There is 1 domain that have DNS TXT set to v=spf1 mx a include:_spf.webhosting.systems a:mail.ctb-it.de -all.
There is 1 domain that have DNS TXT set to v=spf1 mx a include:_spf.webhosting.systems a:mail.ctb-it.de -all.