I'd guess sudo is configured to send mail in some situations. And that the parameters to the program are not what postfix expects. Farid Hamjavar wrote: > > Centos 5 > > Hello > > I successfully converted my mta from sendmail to postfix. > no problem. mail is ok. > > A by-product of that, as bizarre as it may seem is this: > > > As regular user, when I do 'su -' to become root, all is well. > > > As regular user, when I do 'sudo bash' I become root > alright but I also get: > > sendmail: fatal: Recipient addresses must be specified on the command line > or via the -t option > > > > I tried many things ranging from temporarily swapping sendmail.postfix to > messing around with /etc/profile and /etc/skel/* and many other things. > > How can I address the annoying message above? > > > Thanks, > Farid > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- Milton Calnek BSc, A/Slt(Ret.) milton at calnek.com 306-717-8737 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.