Domains with DNS TXT v=spf1 mx a ip4:193.135.56.22 include:smtp.backslash.ch -all
There is 1 domain that have DNS TXT set to v=spf1 mx a ip4:193.135.56.22 include:smtp.backslash.ch -all.
There is 1 domain that have DNS TXT set to v=spf1 mx a ip4:193.135.56.22 include:smtp.backslash.ch -all.