Domains with DNS TXT v=spf1 a mx include:_spf.zimbraoffice.it include:_spf.smtpremoto.net include:spf.crsend.com -all
There is 1 domain that have DNS TXT set to v=spf1 a mx include:_spf.zimbraoffice.it include:_spf.smtpremoto.net include:spf.crsend.com -all.