After what's next, maybe it's time to give up the Internet. Excess but with a dose of truth.
There is a Google extension Chrome called Streak. Once this extension is installed, it will allow you to see when exactly someone read an email you sent them. This means today that Streak users will be able to see if their emails have been opened and have not been answered.
The plugin is free και αρκετά εύκολο στην installation. Μόλις το κατεβάσετε και δώσετε πρόσβαση στο λογαριασμό σας στο Gmail, θα ξεκινήσει αυτόματα αρχίσει να παρακολουθεί τα εξερχόμενα μηνύματα.
Below it seems to present an email you sent. A small window in the top right corner of the envoy presents it as a closed email:
Here is the time when someone opens the e-mail
If you send one message to many recipients, Streak will tell you how many people read it, but will not reveal their identities:
Streak is known from 2012, but reading proof was added in November. It is released as a plugin, just for it Google Chrome and Safari.