Domains with DNS TXT v=spf1 mx a include:s6mail.serverbereich.de -all
There is 1 domain that have DNS TXT set to v=spf1 mx a include:s6mail.serverbereich.de -all.
There is 1 domain that have DNS TXT set to v=spf1 mx a include:s6mail.serverbereich.de -all.