trojan81

Web Developer, specialising in WordPress

Terry Woods

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In regards to email antispoofing: In the SPF query below. What does the &quot;?ALL&quot; indicate?<br />
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v=spf1 ip4:68.96.128.0/18 ?all
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In regards to email antispoofing: In the SPF query below. What does the "?ALL" indicate?

v=spf1 ip4:68.96.128.0/18 ?all

antispoofing settings

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

spoofing

Security is the protection of information systems from theft or damage to the hardware, the software, and the information on them, as well as from disruption or misdirection of the services they provide. The main goal of security is protecting assets, and an asset is anything of value and worthy of protection.  Information Security is a discipline of protecting information assets from threats through safeguards to achieve the objectives of confidentiality, integrity, and availability or CIA for short. On the other hand, disclosure, alteration, and disruption (DAD) compromise the security objectives.