> > what does the below record mean? > > > > example.com. IN TXT "v=spf1 mx a -all"
when the above SPF record exists. Let's look at with below Records example.com. IN MX 10 mailgw1.example.com. example.com. IN MX 20 mailgw2.example.com. example.com. IN MX 30 mailgw3.example.com. example.com. IN A 1.2.3.a example.com. IN A 1.2.3.b host1.example.com. IN A 1.2.3.c host2.example.com. IN A 1.2.3.d host3.example.com. INA 1.2.3.e that means , ALL MXes ( mailgw1.example.com , mailgw2.example.com and mailgw3.example.com ) are allowed to send mails using example.com domain. in addition to that example.com ( 1.2.3.a and 1.2.3.b ) are also allowed to send mails using example.com domain. BUT host1.example.com , host2.example.com and host3.example.com and all other hosts in the world are prohibited to send mails using domain example.com Your commnets. > I would recommend RFC 7208 these are all easily answered in Appendix A. > > thanks for the above > > > > > -- > > cat /etc/motd > > > > Thank you > > Indunil Jayasooriya > > http://www.theravadanet.net/ > > http://www.siyabas.lk/sinhala_how_to_install.html - Download Sinhala > > Fonts > > -- cat /etc/motd Thank you Indunil Jayasooriya http://www.theravadanet.net/ http://www.siyabas.lk/sinhala_how_to_install.html - Download Sinhala Fonts
