SPF record for Windows
v=spf1 a mx include:websitewelcome.com ~all
SPF record for Linux-Shared
v=spf1 +a +mx +include:websitewelcome.com ~all
SPF record for Linux-VPS
v=spf1 +a +mx +ip4:IP_OF_VPS ~all
SPF record for Windows
v=spf1 a mx include:websitewelcome.com ~all
SPF record for Linux-Shared
v=spf1 +a +mx +include:websitewelcome.com ~all
SPF record for Linux-VPS
v=spf1 +a +mx +ip4:IP_OF_VPS ~all