Topic Path: Symbol Reference > Classes > TIdSMTP Class > TIdSMTP Properties > AuthType Property
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TIdSMTP.AuthType Property

Authentication type required to connect to the SMTP host.

property AuthType: TIdSMTPAuthenticationType;

AuthType is a TIdSMTPAuthenticationType property that specifies the authentication type to use when accessing the SMTP server. 

AuthType can contain one of the following values: 

 

Value 
Meaning 
atNone 
No authentication is required. 
atSASL 
SASL authentication is required. 
atDefault 
Use the default username and password authentication. 

 

The default value for AuthType is DEF_SMTP_AUTH as assigned during initialization of the component. 

You can find the authentication mechanisms supported on the SMTP server identified in Host by using SASLMechanisms property.

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