Explanation of "Sent" status

[FirstNameL47885]

More than 60,000 emails have been issued and only few  have been opened about 20%. Why ?It is said " Sent " and my question is " To where " ? To another electronic device or really to those who are eagerly waiting for our emails ? 

[RobD739]

I'm having the same issue. It says sent. BUT I included my email on the list and haven't received anything. 

[David__B]

Hello. If you haven't already, I would take a look at your email reports. Is a 20% open rate lower than your own or the industry average? Are you experiencing a lot of bounces? If some of you emails are doing better than others, take a look at their subject line. Having a captivating subject line that grabs people's attention is very important in getting opens.