Domains with DNS TXT v=spf1 a mx include:_spf.hostnet.nl include:cust-spf.exacttarget.com include:authsmtp.com

There is 1 domain that have DNS TXT set to v=spf1 a mx include:_spf.hostnet.nl include:cust-spf.exacttarget.com include:authsmtp.com.

Top Domains with TXT set to v=spf1 a mx include:_spf.hostnet.nl include:cust-spf.exacttarget.com include:authsmtp.com