On Nylas N1 email client it is possible to see if receiving person has opened your email. They call this feature open tracking. Is it possible to configure emacs email client mu4e to have this feature?
E-mail tracking is performed by embedding a link to server in a mail, as described here for Nylas. This requires server-side infrastructure which mu4e doesn't provide.
(It is also not very reliable, since it requires the recipient to enable display of remote images.)