SPF records
Information about the permissible posts of mail for the domainv=spf1 ip4:213.108.130.21 ip4:213.108.130.22 ip4:193.232.158.30 ip4:213.108.130.18 ip4:213.108.130.25 include:gmail.com include:_spf.google.com include:mxsspf.sendpulse.com include:mx.wishmaster.me a mx ~all