Auto CC of email address in response not wanted.

I have just set up a new business unit where the primary address will be .nl

Incoming email addresses for this in the mail config have been set to support@company.nl, support@company.be and support@company.lu,

The reply address is set to support@company.nl

I can send an email to .nl .be and .lu and they all come in to this business unit fine.

If I reply to the email that has been sent to the .nl address it works fine and shows the From address as .nl.

If I reply to the email that has been sent to the .lu or .be address, the From address shows as .nl but it adds a cc automatically for the lu or be address.

I don't want it to do this as it will send a duplicate of the email back through the email server, can you advise how I stop this please, I can't see any options in the templates for this,

Cheers

Rich