Domains with DNS TXT v=spf1 a mx include:agenturserver.de include:spf.crsend.com a:gui.connectivity-service.insys-icom.de ~all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:agenturserver.de include:spf.crsend.com a:gui.connectivity-service.insys-icom.de ~all.