Wrong E-Mail Header by reset the password

Hello community,

I have installed the new 1.12.4 version.

If let a user send a new password, the received mail has no "From".

Instead the mail parameter are in the mail body:

mail body ----------------------------------------------
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
From: support@domain.com<mailto:support@domain.com>

Hallo testuser,
We have change you password to: xxxxxxxxxxxx

The PHP mail() are working correct, so I think it is a problem with the mail function from elgg?!?

Can everybody help me?

Thank you!