Answer
The best ways to create subject lines for email are;
• Keeping it short and to the point
• Maintaining a familiar sender name
• Avoiding the “no-reply” sender name
The best reaction would be to send a follow-up piece of content that builds off the subject
Step-by-step explanation
The essential elements that a subject line of an email should possess are;
• it should show urgency such as use of a phrase like ,”Act now!”
• Create curiosity in the subject line
• The subject line such show relevance and time consciousness