On Dec 17, 2011, at 6:11 AM, Frederick Cheung wrote: > > > On Dec 17, 5:37 am, "Giovanni L." <[email protected]> wrote: >> I building an application using rails, and I wanna know if is possible >> to write a code which allows me to be notified or something like that >> when the user open an email sent through my application. I need to track >> that information. When I sent an email, I need know. The question to be >> answered by my app is "Did they read it?" >> > > You can't know this with certainty. The most common technique is to > include a link to a tiny image and log requests to the image > (obviously include enough in the url that you can workout which email > is being read). A lot of people have external images turned off for > their email though
For precisely this reason. Walter > > Fred >> Tips in others languages would be ok to me! >> >> Thanks in advance, and sorry for my bad English =)) >> >> -- >> Posted viahttp://www.ruby-forum.com/. > > -- > You received this message because you are subscribed to the Google Groups > "Ruby on Rails: Talk" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/rubyonrails-talk?hl=en. > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.

