We have 40 clients served by ab NIS server. We could like mail sent from the clients to show the return address of the server. That has always been done with the DM macro of the sendmail.cf file. I changed an uncommented the masquerade line in the sendmail.mc file: MASQUERADE_AS(`cs.trinity.edu')dnl What seemed to be the correct DM macro line was inserted in the sendmail.cf file by the make. But it does not work. The return address still includes the name of the machine. What have I done wrong and what can I do about it? -- ------------------------------------------- Aaron Konstam Computer Science Trinity University 715 Stadium Dr. San Antonio, TX 78212-7200 telephone: (210)-999-7484 email:akonstam@xxxxxxxxxxx