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