If Item.Size = 0 Then 
   Item.Send 
 End If 

I wondered whether it would be possible to use Thunderbird in order to send an automated email. Details for reference are included below: I am currently using a form in Outlook to auto send an email with an attachment using the command line. I was wondering whether I would be able to achieve similar using a function inside of Thunderbird. Below is a step-by-step description of how I currently complete the process using Outlook. 1.) I create a form inside of Outlook with the recipient name, subject and message, which stay the same, and enter this code into the script editor to make Outlook autosend the email when the form is opened: Function Item_Open() If Item.Size = 0 Then Item.Send End If End Function 2.) I save the form and create a short-cut to Outlook on the desktop. I then open the short-cut properties and enter something similar to this into the short-cut target: "C:\Program Files\Microsoft Office\Office14\OUTLOOK.EXE" /c "IPM.Note.DirectoryListReport2" /a "f:\example.txt" Where; "IPM.Note.DirectoryListReport2" - Opens the form. /a "f:\example.txt" - adds an attachment. When the shortcut is selected (or set to open as a scheduled task) The attachment is then automatically added and the email sent. I'd be most grateful to find out whether the same could be achieved using Thunderbird, and I'd be very happy to add a post on the forums to inform other users of the functionality, as it could be very useful to others for a variety of applications. Best and I look forward to your reply, James