Thank you andrew!!! is already running!
One more question: I need to configure dns TXT entries for DKIM and SPF in my external host?
In my external hosting, there is already a TXT entry, which should be used for e-mail accounts on the server itself.
Ex: v=spf1 include:_spf.locaweb.com.br ?all
But as I am not using the email on the server itself, I am unsure if I need to change something.
In DH there are already two TXT entries for DKIM:
_domainkey TXT o=~; email@example.com
cicloviasport.com.br._domainkey TXT k=rsa; t=y; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDDr1Quooktl9vUx0R+DpNJFL13Lb e5c9MaeDYv/MzZaXyxYOH5MyVjjSqqsDa/mxEiFWaSBE9ZM+ljP7fIVx1Vz24tm7jKbhOmlgQmSeWG2R 1iVl7fVNCD4L/x++kMy7MDxTu4YBBDPNfHPFqwv9/4hTj7XgnrlvwC3gbzogs81wIDAQAB