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The Send history tab on Program Dashboard → Contacts lists every campaign you have sent, newest first.

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What each row shows

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What “delivered” means

It means the email provider accepted the message and delivered it to the mailbox. It does not mean anyone read it. There is no open tracking, on purpose.

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What “failed” means

A recipient counts as failed when:
  • The provider rejects the address.
  • The message hard-bounces — a bad mailbox or a dead domain.
  • We are rate-limited and the retries run out.
A hard bounce sets that contact to Bounced, and they are left out of every future send. That protects your sender reputation, so your other emails keep landing in inboxes.

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Unsubscribes

Every email has an unsubscribe link that is unique to that person. When someone clicks it:
  1. They land on your unsubscribe page.
  2. Their contact status changes to Unsubscribed.
  3. They are left out of every future send from your organization.
Unsubscribes do not show on the send history row, because they happen after the send. You see them on the contact record and in the status counts on All contacts.

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Sending to the same list again

Nothing stops you. Two things to know:
  • Anyone who unsubscribed or bounced since last time is dropped automatically.
  • The recipient count in the composer is today’s count. It can be lower than last time for that reason.

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When a whole send fails

If only a few recipients failed inside an otherwise good send, you do not need to do anything. Their status updates on its own.

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See also