Chapter 22-2Where the SMTP has multiple authentication mechanisms, selection is made in the order of the priority list given below.1) CRAM-MD52) NTLM3) GSSAPI4) STARTTLS operation PLAIN5) STARTTLS operation LOGIN6) STARTTLS non-operation LOGIN7) STARTTLS non-operation PLAINAuthentication methods can be disabled in service mode. When the service mode value is set to '1', the encoding system can be disabled. (The default setting isall enabled.)Ordinarily, the default setting is used, but if the server administrator wants to disable a particular encoding system, the settings need to be changed by the servicemode settings.For the actual SMTP AUTH settings, system administrator settings > network settings > E-Mail/ I-Fax > Authent./ Encryption > SMTP Authentication (SMTPAUTH) should be set ON and the required user names and passwords for SMTP AUTH need to be entered. If SSL permission, which is the encoded transmissionsetting, described later, is ON, with PLAIN and LOGIN authentication, the authentication encoded by the STARTTLS command can be used.For reference, this section describes what happens to the Outlook Express settings when using an SMTP server that supports SMTP AUTH. Outlook Express PLAINauthentication only.1) From the Outlook Express tools menu, select Accounts. In the example, pop3.canon.com is selected.2) From Internet Accounts, select the desired account and click on Properties. In the example, the pop3.canon.com server tab has been selected from the Propertieswindow.3) Put a check in the 'My server requires authentication' box against the OutGoing mail server.F-2-14) Press the settings button that has been made active.5) Programme the transmission mail server window's logon information. In the default, 'use same settings as my incoming server' is selected. This setting uses thePOP3 authentication account name and password entered against the reception mail server in the previous window and performs SMTP AUTH operation.