Resend an EmailOctopus campaign to non-openers

1. Open the Reports tab and click View report next to the campaign to see how many contacts opened and clicked.
2. Go to Contacts, open the Segments tab, click Create a segment, name it and choose Campaign activity with the condition "did not open" for that campaign.
3. Add a second filter, "was sent", and match all conditions. Without it the segment also holds contacts who never received the first email.
4. On the Campaigns tab, open the drop-down next to the campaign, choose Duplicate and go through the set-up page again with a new subject.
5. In the "Sending to" field, open the Segment tab, pick your segment, then click Schedule with a date, a time and a timezone.
6. The segment is evaluated again at sending time, and Apple Mail pre-fetches the tracking pixel, so some contacts count as openers although they never read the email.

In my EmailOctopus list Newsletter, check how the "Autumn offer" campaign did. Make a segment of everyone who was sent it and did not open it, duplicate the campaign with the subject "Last chance: Autumn offer", send it to that segment and schedule it for Thursday 9:00 London time.

1. 01

   Read the first send

   get_campaign_report returns what was sent, opened and clicked. If the campaign is still being sent or its report is not ready, the agent stops and says so, because a segment built too early would hold contacts who simply have not had the email yet.

2. 02

   Build the segment with both filters

   create_segment gets match "all" with the conditions "did not open" and "was sent" for that campaign. The agent adds "was sent" every time, so contacts who were outside the first recipients stay out.

3. 03

   Copy the campaign and change what must differ

   duplicate_campaign makes a draft from the sent campaign. update_campaign sets the new subject and, if you ask, the preview text. The agent leaves the design alone, so the resend looks like the original.

4. 04

   Aim the draft at the segment

   set_campaign_recipients sets the audience type to segment on the same list as the first send, because a campaign goes to one list at a time. Nothing is sent yet.

5. 05

   Schedule it with your OK

   schedule_campaign takes the date, time and timezone from your prompt. It reaches your contacts, so it asks for your OK by default, and you can switch that off once you trust the rule.

Autumn offer (sent Oct 14): sent 1,840, opened 702 (38.2%), clicked 96 (5.2%)
Segment "Did not open: Autumn offer" created (did not open + was sent)
Draft "Autumn offer, last chance" created from the original, subject "Last chance: Autumn offer"
Recipients: segment "Did not open: Autumn offer" on list Newsletter
Scheduled for Thu Oct 22, 09:00 Europe/London, waiting for your OK

curl -X POST https://cotlet.dev/api/v1/emailoctopus/lists/4d1c8e5a-7f2b-4c1e-9a63-0b5d2e8f1a37/segments \
  -H "Authorization: Bearer $COTLET_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"name":"Did not open: Autumn offer","match":"all","conditions":[{"type":"campaign_activity","operator":"did not open","value":"Autumn offer"},{"type":"campaign_activity","operator":"was sent","value":"Autumn offer"}]}'

{
  "segment": "Did not open: Autumn offer",
  "list_id": "4d1c8e5a-7f2b-4c1e-9a63-0b5d2e8f1a37",
  "match": "all",
  "conditions": [
    "Campaign activity: did not open, Autumn offer",
    "Campaign activity: was sent, Autumn offer"
  ],
  "created": true
}

MCP: add https://cotlet.dev/mcp/v1 with the same key; the call is emailoctopus_write → create_segment. Example data.

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