SmtpServerAuthPopBeforeSmtp Property
Gets or sets whether the Smtp component should perform POP-before-SMTP authentication prior to connecting to the SMTP server.

Namespace: MailBee.SmtpMail
Assembly: MailBee.NET (in MailBee.NET.dll) Version: 12.4 build 677 for .NET 4.5
Syntax
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public bool AuthPopBeforeSmtp { get; set; }

Property Value

Type: Boolean
A boolean value specifying whether the Smtp component should perform POP-before-SMTP authentication prior to connecting to the SMTP server. The default value is false.
Remarks

POP-before-SMTP authentication is used by some older mail systems which do not support ESMTP authentication to authenticate users. In this scenario, Smtp component connects to the POP3 server first, authenticates the user, disconnects from the POP3 server, and immediately reconnects to the SMTP server.

Automatic POP-before-SMTP authentication (which is performed when this property is true) requires the POP3 server run on the same host as the SMTP server (e.g. both servers are mail.domain.com). If it's not so (e.g. pop.domain.com for POP3 and smtp.domain.com for SMTP), AuthPopBeforeSmtp(String, Int32, String, String) method can be called prior to connecting to the SMTP server instead of setting AuthPopBeforeSmtp to true.

Note Note
After POP-before-SMTP authentication was performed and the connection with the server was established, there is no need to call Login method. Login method performs ESMTP authentication only.
See Also