Email Marketing Email Deliverability 2 — Questions and Answers
Question 1: What does DKIM stand for?
- Domain Keys Identified Mail (Correct answer)
- Direct Key Internet Messaging
- Digital Keychain Integrated Mail
- Domain Knowledge Integration Method
Correct answer: Domain Keys Identified Mail
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to email headers to verify the sender's domain.
Question 2: Which metric directly reflects your sender reputation with ISPs?
- Click-through rate
- Sender score (Correct answer)
- Open rate
- List size
Correct answer: Sender score
A sender score (0–100) is assigned by services like Validity and reflects how ISPs perceive your sending reputation.
Question 3: What is the recommended maximum hard bounce rate to maintain good deliverability?
- 5%
- 2% (Correct answer)
- 10%
- 0.5%
Correct answer: 2%
Keeping hard bounces below 2% is the general industry standard to avoid deliverability problems and ISP blocks.
Question 4: What does 'inbox placement rate' measure?
- The percentage of emails opened
- The percentage of delivered emails that land in the inbox vs spam (Correct answer)
- The ratio of clicks to opens
- The number of unsubscribes per send
Correct answer: The percentage of delivered emails that land in the inbox vs spam
Inbox placement rate measures how many of your successfully delivered emails actually land in the inbox rather than spam or promotions folders.
Question 5: Which practice most directly improves email deliverability for a new sending domain?
- Sending large blasts immediately
- IP warming (Correct answer)
- Using free ESP accounts
- Sending HTML-only emails
Correct answer: IP warming
IP warming gradually increases sending volume from a new IP to build a positive reputation with ISPs before sending at full volume.
Question 6: What is a 'feedback loop' (FBL) in email deliverability?
- Automatic re-sending of bounced emails
- A service where ISPs forward spam complaints back to senders (Correct answer)
- A tool for tracking open rates
- A method of A/B testing subject lines
Correct answer: A service where ISPs forward spam complaints back to senders
Feedback loops (FBLs) are services offered by ISPs that automatically notify senders when their subscribers mark email as spam.
Email Marketing Email Deliverability 2
What does DKIM stand for?