Does Campaign Monitor Transactional Email send to unsubscribed or bounced emails?

Summary of the Problem

You need to understand whether Campaign Monitor Transactional Email will reach recipients who have unsubscribed from your marketing lists, or whether the suppression list blocks these essential operational messages.

The Solution

Yes, transactional emails will be delivered to unsubscribed recipients.

Campaign Monitor treats transactional messages differently from marketing campaigns. When someone unsubscribes from your lists, they will still receive transactional emails such as order confirmations, password resets, account notifications, and event updates.

Why this happens:

Transactional emails are legally classified as operational messages, not marketing communications. Campaign Monitor correctly excludes them from marketing unsubscribe preferences, ensuring your customers receive important service-related information regardless of their marketing preferences.

The suppression list does not affect transactional emails:

Unlike marketing campaigns, transactional emails are not checked against the suppression list before sending. This means transactional emails will be sent even to addresses that are on the suppression list due to hard bounces, spam complaints, or manual suppression from marketing campaigns.

How transactional email bounces are handled:

When a transactional email bounces, Campaign Monitor does not add that email address to the suppression list. The bounce is recorded in the transactional delivery log, but the system treats transactional bounces separately from marketing email bounces.

Your responsibility:

It is your responsibility to monitor the transactional delivery log and use that information to decide whether to attempt sending future transactional emails to addresses that have bounced. Campaign Monitor will not automatically prevent you from sending to these addresses.

Note: Campaign Monitor Transactional Email is only available on Enterprise plans.