This is an example of an agent your team can build in Sylvie: it writes the email that goes to people who signed up, bought or trialled and then went quiet, tuned to what they last cared about and to the offer you are actually allowed to make. It reads your brand brain (voice, what each segment was promised, approved incentives and their limits, consent rules, the win-backs that earned clicks before) and drafts subject line, preview text, body and CTA ready to review. Sylvie does not ship it pre-built: you assemble it once on your own brand brain, then point it at every dormant segment you have.
Sylvie does not ship this agent pre-built. It is an example of an agent your team can build with Sylvie, powered by your brand brain, so it runs your workflow the way you actually run it.
The Re Engagement Email agent is an example of what a marketing team can build on top of its brand brain in Sylvie. It owns one job end to end: the message that reaches someone who has stopped opening, written to give them a reason to come back that is specific to them rather than a generic "we miss you".
Dormant contacts are the most expensive part of any list. You already paid to acquire them, they drag your open rates down, and past a certain share they hurt inbox placement for everyone else on the file. Most teams know they should run win-backs and never do, because each one needs segment logic, an approved incentive and copy that does not sound desperate. Building this agent means the sunset flow finally exists, per brand and per segment, without a writer starting from zero every quarter.
When you assemble the agent, you point it at your brand brain: the tone of voice, what each segment originally signed up for, the products or content they engaged with, the incentives that are genuinely approved (and the discount ceiling that is not), the consent and compliance rules that apply to their region, and the win-back emails that earned clicks before. It reads how long the silence has run, so a 60 day lapse and a 12 month lapse get very different messages.
On a schedule, or on demand ahead of a big send, the agent drafts the subject line, preview text, body and CTA for each dormant segment, then checks the whole thing against your rules and flags anything that promises more than you offered or breaks a consent requirement. Drafts land where your team already works, ready to approve or push to your ESP, with every offer traced back to the brain it came from.
Reactivating a lapsed buyer costs a fraction of acquiring a new one. The agent makes the win-back everybody postpones actually ship, on every segment, every quarter.
Dead weight on a list quietly damages inbox placement for the people who do want to hear from you. Because the agent runs the re-engagement and sunset sequence properly, you clean the file on purpose instead of watching sender reputation slide.
The copy references what that person actually signed up for or bought, pulled from the brain. It reads like it was written for them, not like a mass apology for being ignored.
The discount, the extended trial or the free shipping offer comes from what the client signed off on. Nobody improvises a 40 percent off email that margin never approved.
Thirty quiet days get a nudge, a year of silence gets a real reason to return or a clean goodbye. The agent picks the register from the segment context instead of sending everyone the same plea.
Each brand's re-engagement runs on its own permission-aware brain, so an agency can ship reactivation flows for a dozen lists without re-explaining tone, offers or consent rules on every account.
Re-engagement is never a single email. Here are real moments where teams point this agent at their brand brain and put it to work on the quiet part of the list.
A major campaign is three weeks out and a third of the list has not opened in six months. The agent drafts a re-engagement sequence for that cohort first, so the launch reaches an audience that responds and lands in the inbox instead of the promotions tab.
Customers who ordered twice last year have not returned this year. The agent writes to each cohort using their category, their last purchase and the approved returning-customer offer, so a segment that was written off produces orders without touching the acquisition budget.
Hundreds of trials that never converted are sitting untouched in the CRM. The agent drafts a message tied to the feature that account actually used and what has shipped since they left, so the follow-up nobody had time to write turns cold trials into booked demos.
Consent records for part of the list are thin and a compliance deadline is close. The agent writes the re-permission email in the brand's voice with the exact required wording from the brain, so the team ends up with confirmed opt-ins rather than a legal exposure they hope nobody audits.
A whole vertical went quiet after a pricing change two years ago. The agent builds the win-back on the approved new positioning and what has genuinely changed since they left, so sales gets warm replies to work instead of another cold prospecting list.
Every quarter somebody is supposed to run the sunset sequence and nobody ever does. The agent drafts it on schedule for each brand, so unengaged contacts are either woken up or retired cleanly and the list stays healthy without a calendar reminder everyone snoozes.
A template hands you a shell and leaves the thinking to you: which segment, which offer, which tone, what these people ever cared about. This is an agent built on your brand brain, so it starts from your voice, your approved incentives and each segment's real history, and returns a draft rather than a fill-in-the-blank.
Only if you tell it to. The brain holds the rules: which incentives are permitted, where the discount ceiling sits, and when a re-engagement should lead with value instead of money. The agent drafts inside those limits, so the email offers a reason to return rather than a fire sale.
Sylvie does not ship this agent pre-made, and it does not leave you at a blank page either. You approve what it may read from the brain, describe the win-back flow you want (timings, segments, incentive rules, when to sunset) and Sylvie assembles the agent around it, usually in an afternoon rather than a dev cycle.
It reads the relevant parts on every run: voice, what each segment signed up for, product and offer facts, consent and compliance rules, and the past win-backs that actually earned clicks. Update the brain and the next draft reflects it, with no prompt to rewrite anywhere.
That is the point of building it yourself. You define what dormant means for each brand (30 days for a daily newsletter, a year for a considered purchase) and the agent tailors the message, the incentive and the wake-or-sunset decision per segment, so one brand can run several reactivation tracks at once.
Each brand brain is permission-aware and isolated, so one client's list context, offers and purchase history never surface in another client's email. The agent only reads what you have given it access to, and your brand knowledge stays yours inside Sylvie.
Book a demo and we will map the workflows worth turning into agents, and show how each one runs on your brand brain.
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