Which of the following is the fake SMTP server for testing and viewing emails that can also be used for analyzing emails by SPAM and blacklists?

Which option is the best way for reaching the end-users who have opted in but the digital marketer lacks the proof of their consent?

In the Blacklists, which information is/ are stored about the suspected spammers?

In relation to the deliverability checking ReputationAuthority tool, the reputation score can be received on which scale?

Maximum number of emails that can be sent each day through the Gmail SMTP server when logged into the web interface?

Which option does not require the users to explicitly and consciously take any other action after entering their email?

What is a double opt in process?

Best way to make internet marketing effective?

What are the four P's of marketing?

Who was one of the original widely known affiliate marketers?

What is a 'call to action'?