Final answer:
The statement that leads with duplicate email addresses cannot be sent the same email by the same flow step during a single batch campaign run is true. Marketo filters leads with the same email address to ensure only one email is sent per address in a campaign, maintaining email best practices and sender reputation.
Step-by-step explanation:
The question revolves around managing duplicate email addresses in Marketo, which is a marketing automation platform used by businesses to manage campaigns and nurture leads. A common concern is handling leads with duplicate emails during campaign runs. The correct statement regarding leads with duplicate email addresses is: B. They cannot be sent the same email by the same flow step during a single batch campaign run. This is due to Marketo's rules to prevent the same email from being sent to the same address multiple times during a batch campaign to maintain email deliverability and reputation.
In Marketo, leads with the same email address will be filtered so that only one email is sent per address within the same campaign, avoiding multiple emails being sent to the same recipient. This helps in maintaining a professional approach and preserving sender reputation. A key aspect is Marketo's efforts to provide a user-friendly experience and maintain compliance with best email practices, thus preventing spam and enhancing the effectiveness of email campaigns.