Hi, How can I configure Sendmail to put a specific email address in the Return-Path? I have configured my Reply-To address but in you look at the headers for a sent email the Return Path is still listed at user@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Basically we are emailing our customers from this server and one of our customers users a white list. Now we gave them our reply to address for their white list but that did not work... we had to give them apache@xxxxxxxxxxxxxxxxxxxxx for now... not very professional... How can I sent a specific Reply-To and have the Return-Path be the same... I have tried the Masquerade option and that changes the domain of the Return-Path but I also need to change the User listed in the return path... Any help woutl be great!