The problem this solves
A list that has stopped opening is a deliverability risk and a missed audience at the same time. Sending the same campaigns to subscribers who have ignored ninety days of them teaches mailbox providers that the mail is unwanted; cutting them without a last attempt throws away people who might have simply changed roles. A reactivation series is the standard answer, and it works far better when it knows who it is talking to.
The Personalization Agent enriches the dormant subscribers with company and role, splits them into three segments that make sense for your business - by industry, by role or by how they originally joined - and writes a reactivation email per segment that gives that group a specific reason to come back. The series is staged in Omnisend with the sunset logic described in plain terms, so the list is cleaned by consent rather than by guesswork.
How the mission runs
- Select the dormant subscribers. The Personalization Agent reads Omnisend for subscribers with no opens or clicks in the last 90 or more days, excluding recent signups and anyone already in a reactivation flow, and records how each joined and when they were last active.
- Enrich company and role. Corporate addresses are resolved to companies with industry and headcount, and roles are added where a name is known, so the segments can be built on who the subscribers are rather than only on inactivity.
- Build three segments. Subscribers are grouped into three segments by the dimension that best explains why they might return - industry, role or acquisition source - with the segments and their sizes shown before writing.
- Write a reactivation email per segment. Each email offers that segment a specific reason to stay - a use case, a resource, a change since they last engaged - asks for a single click to remain subscribed, and states plainly what happens if they do nothing, in your voice.
- Stage the series with sunset logic. The three emails are staged in Omnisend as a reactivation series with the follow-up timing and the sunset rule described - who is unsubscribed after no response and when - unsent, with a summary of segments, sizes and sample emails for review.
The prompt
This is the exact objective the agent receives. Swap the obvious placeholders for your own domain, segment or channel and run it as-is from the console, Slack, or the API.
What comes back
A reactivation series staged unsent in Omnisend for subscribers dormant 90 or more days, with the subscribers enriched and split into three segments, one reactivation email per segment written to give that group a reason to return, the follow-up timing set and the sunset logic described in plain language for approval. The summary shows the segments, their sizes and the first email of each.
Make it yours
- Stage the same series in Klaviyo or ActiveCampaign.
- Change the dormancy window to 60 or 180 days to suit your sending frequency.
- Route dormant subscribers at ICP-fit companies to sales before the sunset removes them.
- Add a second touch per segment a week later before the sunset applies.
Frequently asked questions
What is the sunset logic?
The rule for removing subscribers who do not respond to the series - typically unsubscribing after the last email plus a grace period. The agent describes it in the summary and stages it, and you approve it before it runs.
Why enrich subscribers before a reactivation?
Because a reason to return is more persuasive when it fits the reader's industry or role, and because ICP-fit dormant subscribers may deserve a personal touch rather than an automated sunset.
Does anything send before I review?
No. The series is staged unsent and the sunset logic is described for your approval; nothing changes for any subscriber until you activate it.