I use "Mail Address Masquerade" to Masquerade our Internal Mail Address
(star-sh.net) to Internet Mail Address (star-group.net) so that we can receive the "reply mail".
> We Succeeded in "Internet" but failed in "internal":
> When Internal(local)user send a mail to another
Internal(local)user,the problem occured:when another localuser reply this local mail,the "reply Address" of the mail is "star-group.net" rather than"star-sh.net",and the mail goes out rather than local deliver.(I cannot add star-group.net to my sendmail cfg file named "local-host-names",because if so,when I send a mail to a user in parent company whose domain is star-group,such as firstname.lastname@example.org,the mail will be locally dilivered).