I have installed ISPConfig in a CentOS 5 machine using the "Perfect Server" instructions. The Problem... I'm testing the email accounts that I've set up by sending emails to servers such as Yahoo and I see that the datestamp shows the UTC time when it arrives on the other side when I was expecting the local time. My initial setup... The server's BIOS clock was set to local time, then I defined the timezone (PST) during CentOS installation. I then configured ntp to keep the time sync'd. Everything seemed to be fine, 'date' reported the correct time and timezone, ntp is working great. Changes I've made to fix the problem... Change #1 I changed the BIOS clock to UTC and updated CentOS to reflect that the BIOS clock is now UTC. The 'date' command shows the correct local time and timezone. Reboot the server. Result -> No effect, outgoing messages are still timestamped with UTC. Change #2 Since I was sending emails using UebiMiau, I changed the timezone preference to GMT -7 Result -> No effect Change #3 I found the following article that seemed to be relevant... http://archives.neohapsis.com/archives/postfix/2006-09/1445.html It recommends making a copy of localtime into the postfix directory. # cp -p /etc/localtime to /var/spool/postfix/etc/localtime I copied the file and then rebooted the server. Result -> Still no effect Can anyone suggest what I am missing?