How to disable the SMTP delegation feature?

We have some project mailbox with an own email adress (like: sales@mydomain.com).

This is implementen in the templates with the From and Principal fields.

Now if im sending this mail to a internet user (outlook) then appears on the top of the mail this subject: “volkan.senguel@mydomain.com; im Auftrag von; sales@mydomain.com”.

I have now found in this forum that the Mailrouter on the domino server has this delegation feature and several solutions to fix this…

i have tryed with:

  • $Inet*fields

  • Creating a Mailform direct in the mail.box

both without a success…

Is there any solution that i can send mails from a domino server (notes client) wit a “faked” e-mail adress ???

thanks in advance any help or tips

Volkan Senguel