• Description: Use reply-to as default from address, set static value when configured
• Extension key: powermail_from_override
• TER: http://typo3.org/extensions/repository/view/powermail_from_override

Since the upcoming Sender Policy Framework, SPF, the mails are easily placed into the spam folder of the receiver. Therefor you can force the from: sender to make sure the mail can be send from the invoked server.

For more information check: https://en.wikipedia.org/wiki/Sender_Policy_Framework

In constants:

plugin.tx_powermail.settings.moveFromToReplyTo {
    enabled = 1
    from {
        name = Serfhos Auto-Mailer
        email = [email protected]
    }
}