• Standard Exchange Message Tracking from EMC Toolbox is a useful tool and often helps to diagnose message delivery issues. However if message is rejected at Hub Transport level it will not be logged in Message Tracking logs. To trace such messages…

  • If you have access to a computer enabling remote desktop is done this way:Control Panel > System > Remote (tab) > Allow users to connect to this computer However you could be in a situation when Remote Desktop on a…

  • Create a new Distribution Group using Exchange Management Console. Add members to the group Group Name > Properties > Mail Flow Settings > Message Delivery Restrictions. Make sure “Require that all senders are authenticated” checkbox is cleared. This allows to…

  • You can easily remove unwanted programs from Windows Explorer “Open With” using registry. Start > Run > regedit.exeHKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ Explorer\FileExts\[.ext]\OpenWithList Just delete unwanted entries. Windows XP

  • You can give admin1 full access to user1 mailbox and allow him to send emails as user1. user1 can be shared mailbox such as Sales, Support, etc. You can do this either in Exchange Management Console (EMC) or Exchange Management…

  • When opening .msg files in Outlook 2010 you my get an error “the command line argument is not valid. Verify the switch you are using“.This is most likely caused by incorrect file association. Open any folder > Tools > Folder…

  •   Right click on the desktop > New > Shortcut Type the location the item: %windir%\system32\Rundll32.exe Powrprof.dll,SetSuspendState 0,1,0 Type a name for this shortcut: Sleep On Windows Vista and Windows 7 machines, if hibernation is on, this may put computer…

  • Created a new distribution group on Exchange 2007 or SBS 2008. Internal emails are delivered, but external rejected with bounce “550 System error“. Problem may be caused by “Require that all senders are authenticated” option in distribution group properties.Exchange Management…

  • If your hard drive is on it’s last legs developing more and more bad sectors you will start seeing corrupt files and folders. Obviously you should replace such hard drive as soon as possible. If you have an up to…

  • ntupdate ntupdate comes built in into Ubintu server. To manually adjust server time run:sudo ntpdate ntp.ubuntu.comYou can choose another ntp server instead of  ntp.ubuntu.com ntpd To automatically keep server time up to date use ntp. Install ntpd:sudo apt-get install ntp…

  • WOL Wake on LAN (WOL) is a platform-independent networking standard which allows to “Wake-Up” (resume from shut down / hibernate / sleep) a computer remotely by a specifically crafted network message called a magic packet. In order to use this…

  • Normally in a folder with images in Windows XP you have following view options to preview files: Filmstrip Thumbnails Titles Icons List Details In some cases “Filmstrip” option may be missing. To resolve check following: Open any folder > Tools…