Don't be surprised if this question pops up as one of the most common marketing interview questions in your next interview. If you are leading a direct mail campaign, there are certain elements that you must consider. You must make the campaign's goal clear, make a list of your target audience, establish the budget, design the email template, and go through the design with the design team. Then, it would help if you focused on creating a mail copy with the right message. Ensure to include a call-to-action button with source parameters. To get input, circulate the draft email throughout the team. Send a letter, monitor the outcome, and inform the crew of the results. If A/B testing is necessary for upcoming campaigns, do it.