How do I set Return-Path in JavaMail?

I have tried MimeMessage.setHeader("Return-Path","<" + returnPath + ">"); but it does not work.
JavaMail always sets the address of the sender as "Return-Path".

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

jerraAuthor Commented:
Return-Path is not the same as Reply-To.
I thought they were the same at first but apparently not.

Return-Path is the address to where all errormessages is directed.
Reply-To the address used when user hits "Reply" in the mail client.

I am starting to believe it is not possible to change this in JavaMail.
Ah I see. I would be very surprised if JavaMail does not allow this as they would not then have implemented the spec (unless it's a new addition)
Fundamentals of JavaScript

Learn the fundamentals of the popular programming language JavaScript so that you can explore the realm of web development.

jerraAuthor Commented:
RFC 2821
"When the delivery SMTP server makes the "final delivery" of a
   message, it inserts a return-path line at the beginning of the mail
   data.  This use of return-path is required; mail systems MUST support

My mistake, apparently it is not up to the client to set this.
Yes. This would suggest using my first post *is* the way to go:

The Return-Path header is always added by the final delivery agent, and it's
based on the envelope sender address. What you need to do is have your Java
mail program set the correct envelope sender address (this is the address
specified in the SMTP MAIL FROM command). Most MUA's automatically set the
envelope sender address to be the same as the address in the From header unless
you specify something else.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
jerraAuthor Commented:
Yes you're right, as always...  (;

It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Java EE

From novice to tech pro — start learning today.