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I want to make sure that the SPF record below is correct, and it shows that a specific server can send emails on behalf of a specific domain name.<br />
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v=spf1 a mx ptr ip4:66.29.196.216 mx:mail.akfotograf.com ~all<br />
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Would this be correct ?
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I want to make sure that the SPF record below is correct, and it shows that a specific server can send emails on behalf of a specific domain name.

v=spf1 a mx ptr ip4:66.29.196.216 mx:mail.akfotograf.com ~all

Would this be correct ?

SPF record

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

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.