Trace Email source tool you can suggest?

[Rizzotto]

What reliable trace Email source tools can you suggest me trying?
I am getting lots of spam mails. Would like to detect mail server IP of sender in order to stop it.
Have you tried https://whatismyip.live service? Is it reliable?
What other solutions do you know? Any suggestions please?

[Pravin]

By installing an email tracker, you’ll be able to learn when your emails were opened, how many times, and the location recipients were at when they opened it.
Here are some Email Tracker Apps listed that are popular:

1. Mailtrack for Gmail
2. MixMax
3. Cirrus Insight
4. Yesware
5. Streak

[elgerrouth]

Here are few most used email source tracker tools which might help you.

Mailtrack for Gmail. Mailtrack is a simple email tracker that tells you if the emails you sent have been opened or not. ...
MixMax. MixMax is another solid email tracking tool that allows you to see when and if someone reads your email. ...
Cirrus Insight. ...
Yesware. ...
Streak. ...
Gmelius. ...
Snovio. ...
ContactMonkey.