Are you using Edge SaaS ? If so, it's possible that the JVM security policy for a Java callout prohibits the loading of the SMTP class. Without access to the message processor logs, I cannot know for sure, but this is what it seems like. It's not a matter of availability of the java-mail-api JAR, etc.
I will try some tests on my own. In the meantime, a possible workaround may be to use an HTTP-accessible mail service.
EDIT:
Upon further review I think this should work for you. I've tested this. I produced my own Java callout that uses SMTP to send an email, synchronously. It works on my Edge SaaS organization.
The callout code looks like this:
public ExecutionResult execute(MessageContext msgCtxt, ExecutionContext exeCtxt) {
ExecutionResult calloutResult = ExecutionResult.ABORT;
boolean debug = getDebug();
try {
final String messageText = getMessageText(msgCtxt);
final String subjectText = getSubjectText(msgCtxt);
final String host = getHost(msgCtxt);
final String port = getPort(msgCtxt);
final String authUsername = getUsername(msgCtxt);
final String authPassword = getPassword(msgCtxt);
final String toUsername = getTo(msgCtxt);
Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", host); // eg, "smtp.gmail.com"
props.put("mail.smtp.port", port); // eg, "587"
Session session =
Session.getInstance(props,
new javax.mail.Authenticator() {
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(authUsername, authPassword);
}
});
Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(authUsername));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse(toUsername));
message.setSubject(subjectText);
message.setText(messageText);
Transport.send(message);
calloutResult = ExecutionResult.SUCCESS;
}
...
The JARs I included into this proxy bundle are:
- javax.mail-1.6.0.jar
- commons-lang3-3.6.jar (for ExceptionUtils)
- activation-1.1.jar
- edge-custom-smtpmail-1.0.1.jar (my custom jar)
It's not sufficient to add javax.mail-api-x.y.z.jar to the bundle. That JAR is good to satisfy compilation requirements. What you need is javax.mail-x.y.z.jar . The maven dependency i used was:
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>1.6.0</version>
</dependency>
<!-- NOT SUFFICIENT FOR RUNTIME
<dependency>
<groupId>javax.mail</groupId>
<artifactId>javax.mail-api</artifactId>
<version>1.6.0</version>
</dependency>
-->
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