Security methods for e-mail sending and receiving, Pop before smtp (pbs), Smtp-auth (smtp authentication) – Brother MFC-9130CW User Manual
Page 141: Apop (authenticated post office protocol), Smtp over ssl, Pop over ssl

Security terms and concepts
135
13
Security methods for E-mail Sending and Receiving
13
NOTE
You can configure the security methods settings using Web Based Management (web browser). For the
details, see How to configure the machine settings using Web Based Management (web browser)
on page 57.
POP before SMTP (PbS)
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The user authentication method for sending E-mail from a client. The client is given permission to use the
SMTP server by accessing the POP3 server before sending the E-mail.
SMTP-AUTH (SMTP Authentication)
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SMTP-AUTH expands SMTP (the Internet E-mail sending protocol) to include an authentication method that
ensures the true identity of the sender is known.
APOP (Authenticated Post Office Protocol)
13
APOP expands POP3 (the Internet E-mail receiving protocol) to include an authentication method that
encrypts the password when the client receives E-mail.
SMTP over SSL
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SMTP over SSL feature enables sending encrypted E-mail using SSL.
POP over SSL
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POP over SSL feature enables receiving encrypted E-mail using SSL.