Can you trace where a text was sent from?

Here's an abbreviated version of the answer from Ken Hollis and the alt.spam FAQ: To trace the e-mail you have to look at the header. Most mail readers do not show the header because it contains information that is for computer to computer routing. The information you usually see from the header is the subject, date and the "From" / "Return" address. About the only thing in an e-mail header that can't be faked is the "Received" portion referencing your computer (the last received). Unfortunately there is no "single" place to complain to about spam (or Unsolicited Commercial E-Mail). Complaints have to be directed to the correct ISP (internet Service Provider) that the spam originated from. URL's to help you figure out how to look at the headers: http://support.xo.com/abuse/guide/guide1.shtml http://www.rahul.net/falk/mailtrack.html Also, please look through the body of the message for e-mail addresses to reply to. Complain to the postmasters of those sites also (see below for a list of complaint addresses). Assuming a reasonably standard and recent sendmail setup, a Received line that looks like: Received: from host1 (host2 [ww.xx.yy.zz]) by host3 (8.7.5/8.7.3) with SMTP id MAA04298 shows four pieces of useful information (reading from back to front, in order of decreasing reliability): * The host that added the Received line (host3) * The IP address of the incoming SMTP connection (ww.xx.yy.zz) * The reverse-DNS lookup of that IP address (host2) * The name the sender used in the SMTP HELO command when they connected (host1).