[Typo3] emails generated by Board are treated as spam by my email client

[Paul Hayes]

When using the plugin Board, mails generated by the board are being treated
as [spam] by my email client because it has in the header 
[code]
Return-Path: <web>
Received: (from web at localhost)
[code]

Is it possible to replace these in the configuration somewhere?
Or is this a Unix config issue?
Thanks again for your help.
paulhayes