The groupware module of domingo is a high level Java API to email, calender and address books of Lotus Notes/Domino.
The following code fragment is a simple example about how to send an email. You can also read the full groupware example .
Groupware groupware = new Groupware("notes:///local!!mail/kriede.nsf");
Mailbox mailbox = groupware.getMailbox();
Email email = new Email();
email.setSubject("Test");
email.setRecipient("kurt.riede@bea.de");
email.setBody("Hello world!");
mailbox.send(email);
For further details please read the JavaDoc of the domingo groupware API .