Which chrome extension can provide email sender’s info by looking into his ip address?
IP addresses aren't tied to an individual. so no.
Although I couldn't find any chrome extension,have a look at some web services listed in below article which can serve you -
How To Track Your Emails In Gmail & Find Out If The Recipient Has Read It
Also,have a look at the discussion in this topic -A href=//www.makeuseof.com/answers/how-do-i-track-an-email-by-its-i-p-address/>How do I track an email by its I.P. Address?
Apart from your question,you had asked many times in MUO Answers that how can you track whether the receiver has read your email or not.You can do so using Streak for Gmail Chrome extension.May be later its developer could add such features.
Kindly note that question does not ask for "knowing if recipient has viewed the email"
I'd read your question carefully and answered as according to it.
I'd mentioned a link in the above comment,which due to my mistake didn't got revealed.See below -
How do I track an email by its I.P. Address?
Thanks. Can ip address of sender be seen from gmail?
See the article -
5 Effective Tricks To Find Location Of Email Sender In Gmail
Thanks. which chrome extension ( other than Rapportive ) can do what is mentioned on the weblink?
Falcon is another alternative to Rapportive.
Thanks. Nice to know!