## com.google.appengine.api.mail
Interface MailService

    public interface MailService

The `MailService` provides a way for user code to send emails to arbitrary destinations.

See demos/mail/RawMail.java for an example on how to invoke this service.

Nested Class Summary
`static class` `MailService.Attachment`
`static class` `MailService.Header`
`static class` `MailService.Message` Messages are prepared by the caller, and then submitted to the Mail service for sending.

Method Summary
`void` `send(MailService.Message message)` Sends a mail that has been prepared in a MailService.Message.
`void` `sendToAdmins(MailService.Message message)` Send an email alert to all admins of an application.

Method Detail

### send

    void send(MailService.Message message)
              throws java.io.IOException

  Sends a mail that has been prepared in a MailService.Message.

  The message will be delivered asynchronously, and delivery problems will result in a bounce to the specified sender.

  and at least one of the collections for `to, cc, bcc` must not be `null`.

  Parameters:
    `message` - The message to be sent.
  Throws:
    `java.lang.IllegalArgumentException` - when incorrect arguments are passed.
    `java.io.IOException` - on internal delivery errors.

### sendToAdmins

    void sendToAdmins(MailService.Message message)
                      throws java.io.IOException

  Send an email alert to all admins of an application.

  The message will be delivered asynchronously, and delivery problems will result in a bounce to the admins.

  The content of the `to, cc, bcc` fields should be `null`.

  Parameters:
    `message` - The message to be sent.
  Throws:
    `java.lang.IllegalArgumentException` - when incorrect arguments are passed.
    `java.io.IOException` - on internal delivery errors.