Hi: I thought I had the envelope sender problem resolved. It's BACK! That $%#^&%* old ISP name is still out there someplace, and it's come back again. I took the source.net ISP off the linux box, and moved to a new ISP, renonevada.net. Now, when I try to send an email, it's rejected because the envelope sender is again reporting tompoe@source.net, instead of the new ISP, which is tompoe@renonevada.net. I thought I had it eliminated, by updating the DNS, but it's not holding. I just gotta find that file that is being searched for the envelope sender info. It's got to be changed, or I won't be able to use the linuxbox for email. Kmail settings checked, and updated. YaST2 for sendmail set from no sendmail.cf to dialup user [by the way, that setting keeps getting reset to no sendmail.cf for some reason, probably a cron thing, but not related]. DNS settings checked and updated. Can anyone help?