change Reply-To:

[Pau]

Dear all,

I have a problem with my main email address. When I send an e-mail to
my collaborators, if one of them is Chinese, they cannot reply back
because of their firewall. My mail seems to be blocked. They can
however receive my email without any trouble.

What I do is to then change the Reply-To: in the header to an address
that works for them to reply but, of course, sometimes I forget to
change the field.

Is there a way to automatically change the headers if one or many
e-mail addresses belong to a given group?

thanks,

Pau