Even more precisely, SPFv1 allows the owner of a domain to specify their mail sending policy, . which mail servers they use to send mail from their domain. The technology requires two sides to play together: (1) the domain owner publishes this information in an SPF record in the domain's DNS zone , and when someone else's mail server receives a message claiming to come from that domain, then (2) the receiving server can check whether the message complies with the domain's stated policy. If, ., the message comes from an unknown server, it can be considered a fake.
A progressive religion well ahead of its time when it was founded over 500 years ago, The Sikh religion today has a following of over 20 million people worldwide and is ranked as the worlds 5th largest religion. Sikhism preaches a message of Devotion and remembrance of God at all times, truthful living, equality of mankind and denounces superstitions and blind rituals. Sikhism is open to all through the teachings of its 10 Gurus enshrined in the Sikh Holy Book and Living Guru, Sri Guru Granth Sahib.