log4net SDK Reference |

# SmtpAppender.Username Property

The username to use to authenticate with the SMTP server

[Visual Basic]
Public Property Username As String
[C#]
public string Username {get; set;}

#### Remarks

> CAUTION Authentication is only available on the MS .NET 1.1 runtime.

A Username and Password must be specified when Authentication is set to Basic, otherwise the username will be ignored.

#### See Also

SmtpAppender Class | log4net.Appender Namespace