Sunscreen is a lotion, spray, gel or other topical product that absorbs or reflects
some of the .... For example, "
Sun protection factor (
Feb 8, 2016
79 definitions of SPF. Meaning of SPF. What does SPF stand for? SPF
(Telecommunications) sender policy framework: a mechanism designed to prevent an e-mail address being duplicated and used as a false address from which ...
As SMTP itself does not carry an authenticating mechanism, the
May 21, 2012
Dec 29, 2015
Apr 5, 2011
Sender Policy Framework (