Hey all, I was hoping someone could help me on this one. I am going to be setting up Custom MX Records for a clients' Domain so that they can use an alternate external email account. I already know how to do this but I have a question about how they can setup their email addresses on their pc's. Since I host their website on their own Domain (www.theirdomain.com), once I setup their new MX Records, will they still be able to setup their addresses like this: (firstname.lastname@example.org) or would they have to be setup using their new email host's Domain like this: (email@example.com)? I realize that when I setup their new MX records, I will be replacing (mail.theirdomain.com) with (mail.theiremailhost.com). Based on that assessment, it seems to me that they would NOT be able to use their own Domain name in their addresses, but I am not sure??( Can someone here help straighten this out for me. Thanks!