Deliverability issue talks about the most common problem faced by email marketers and so, it is a part of the email campaign interview questions. The issue looks over whether the email bounces it in the recipient’s inbox or it reaches their spam or promotion folder. There are chances that some emails might never show up. Hence, when you answer the question, you need to cover all the aspects of the problem and then some steps through which you successfully handle the deliverability issues. You can include numerous points like Sender Policy Framework, DomainKeys Authentication mail, Domain-based message Authentication, Reporting, and Conformance. Many more points can also be included if you are used to any analytics dashboard like Postmaster tools from Google.