Domains with DNS TXT v=spf1 ip4:217.86.169.28 a mx a:mx20.mecplus.de include:_spf.tophost.ch include:relay.mailchannels.net -all
There is 1 domain that have DNS TXT set to v=spf1 ip4:217.86.169.28 a mx a:mx20.mecplus.de include:_spf.tophost.ch include:relay.mailchannels.net -all.