Send Activity
The Send activity is used to send a document/message to an email recipient or to an HTTP server.
In the case of an email, the send activity lets you specify the look of the message as a compiled HTML page, and allows you to set parameters that can be substituted into the message body at runtime (for example, sender name). For e-mails it is not necessary to specify a document object to send along, but if you do so, the document will be attached to the email. For HTTP, you can only specify a document, which will then be posted to the specified server.
Execution mode is ignored if the protocol used is JMS. In ASYNCHR mode the send is done in a separate execution thread. In asynchronous mode, if any errors happen during the send they cannot be handled in the workflow and step might show up as successful even if actual send failed.