Mail Seen - Email Tracker for Gmail

This did not work. I have sent 3 emails to 3 different people that opened and viewed it. It did not show that the emails had been viewed.

Great app!

Not working. I sent mail from my Gmail to outlook mail & Gmail to Gmail but it's still showing " Nobody saw this email yet ". but I already opened that mail. Also i do multiple refreshing over my Gmail but still same result.

It works perfectly, very useful and intuitive. Great discovery, a new extension on my laptop.

Works perfect, incredible!!! I will never be ignored again, or at leats i will know.

Very Intuitive and helpful! Recommend!

Very helpful in daily activities. Recommend!

Super useful. I highly recommend it!

Super helpful.

Big like for this app!