These constant define if SSL encryption is used in the
connection. You should set wodSmtp.Security, property with these
SecurityNone means that SSL will not be used. This is
default value, to preserve compatibility with older versions of
SecurityAllowed will allow wodSmtp to issue STARTTLS command
to create secured connection, but is not required. If SSL
negotiation fails, message will be delivered through insecure
SecurityRequired means that wodSmtp must create secured
connection using STARTTLS command before he tries to deliver the
SecurityImplicit will create internal SSL 'wrapper' over
wodSmtp. wodSmtp will establish SSL connection prior to exchanging
any data between the server and itself. STARTTLS command is not used
anymore because connection is already secured. Usually, servers
using this type of SSL security are listening on port 465.
||No security/SSL required.
||Security/SLL is allowed, but not
||Security is required.
||Implicit security through SSL