If u want to know that ur sending mails get reads or not and more information about ur mail i.e. the location of mail opened,time,ip address and many more then make a account in
Readnotify.
ReadNotify is the most powerful and reliable email tracking service that exists today.readnotify tells u ...
*Date and time opened
*Location of recipient (per their ISP city /town)
*Map of location (available on paid subscriptions)
*Recipients IP address
*Apparent email address of opening (if available)
*Referrer details (ie; if accessed via web mail etc)
*URL clicks
*How long the email was read for
*How many times your email was opened
*If your email was forwarded, or opened on a different computer
but readnotify is not free .in ur free account u can trace the first 25 outgoings mail .
if u want to free mail tracker service the check out..
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labnol*
mail tracker*
modmyprofileLabels: labnol, mail notification, mail tracker, modmyprofile, readnotify