[java-dev] net.mail.send

I'm having trouble with net.mail.send. Trying to send email from/to  
my .mac account I'm getting this error message:

com.sun.mail.smtp.SMTPSendFailedException: 556 5.1.0 Invalid From  
header.
	at com.sun.mail.smtp.SMTPTransport.issueSendCommand 
(SMTPTransport.java:1515)
	at com.sun.mail.smtp.SMTPTransport.finishData(SMTPTransport.java:1321)
	at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:637)
	at javax.mail.Transport.send0(Transport.java:189)
	at javax.mail.Transport.send(Transport.java:118)
	at net.mail.send.deliver(send.java:71)
exception: MessagingException
 
I have no idea why georghajdu at mac.com is generating this message.
Also, I noticed that authentication wasn't implemented. Is this on  
the author's to-do list? This would be nice!

I'm using JavaMail 1.4.1 and jaf 1.1.1 on a MacBook with 10.4.11 and  
the latest Java release installed.

Georg