log4net SDK Reference |

# SmtpPickupDirAppender Class

Send an email when a specific logging event occurs, typically on errors or fatal errors. Rather than sending via smtp it writes a file into the directory specified by PickupDir. This allows services such as the IIS SMTP agent to manage sending the messages.

For a list of all members of this type, see SmtpPickupDirAppender Members.

System.Object
log4net.Appender.AppenderSkeleton
log4net.Appender.BufferingAppenderSkeleton
log4net.Appender.SmtpPickupDirAppender

[Visual Basic]
Public Class SmtpPickupDirAppender
Inherits BufferingAppenderSkeleton
[C#]
public class SmtpPickupDirAppender : BufferingAppenderSkeleton

#### Thread Safety

This type is not safe for multithreaded operations.

#### Remarks

The configuration for this appender is identical to that of the `SMTPAppender`, except that instead of specifying the `SMTPAppender.SMTPHost` you specify PickupDir.

The number of logging events delivered in this e-mail depend on the value of BufferSize option. The SmtpPickupDirAppender keeps only the last BufferSize logging events in its cyclic buffer. This keeps memory requirements at a reasonable level while still delivering useful application context.

#### Requirements

Namespace: log4net.Appender

Assembly: log4net (in log4net.dll)

#### See Also

SmtpPickupDirAppender Members | log4net.Appender Namespace