The challenge
Have you ever had an email land in the spam folder? Now imagine all your emails doing this: client communications, meeting confirmations, and time-sensitive correspondence, all going to spam. For a UK-based wealth management firm, that was the reality.
For a regulated financial services business, email isn’t a marketing extra. It’s core infrastructure. When deliverability fails, client trust and operational reliability are both at risk. The firm needed structured, methodical intervention, not just a platform switch.
The scale of the problem became clear quickly. Across the rehabilitation process, four headline numbers defined the engagement, from the initial send volume ceiling to the inactivity threshold we set for ongoing list pruning.
Here is a summary of everything we put in place across the engagement, before we get into the detail of how we approached each phase.
What SME Software Help delivered
A fully rehabilitated email domain, a structured subscriber management process, and a scalable CRM-integrated email marketing system built for a regulated environment.
- Technical deliverability foundations: SPF, DKIM, and DMARC correctly configured, with a dedicated sending domain for prospecting to protect the primary brand domain.
- MailerLite deployed with real-time CRM integration via API, enabling automated tagging, segmentation, and suppression management across both systems.
- Staged list rehabilitation across domain and engagement segments, using throttled sending to rebuild positive sender signals with mailbox providers.
- A structured four-email re-engagement framework to recover dormant contacts before removal, with hard bounce automation and soft bounce follow-up workflows.
- Automated lead nurture sequences with CRM task creation, behaviour-triggered workflows, and manual oversight checkpoints appropriate for a regulated firm.
The core problem: poor email domain reputation
The firm had accumulated negative sending signals over time. This included cold outreach from the main domain, large legacy lists with unengaged contacts, inconsistent bounce management, and no structured engagement segmentation.
Mailbox providers such as Gmail and Outlook evaluate domain trust continuously. Once reputation declines, recovery requires structured intervention rather than simply switching platforms. The table below shows how stark the contrast was between where the firm started and where they ended up.
Where they started vs where they ended up
Our approach
Recovering a damaged domain reputation happens in sequence, with each phase depending on the one before it. Jumping straight to sending campaigns before the technical foundations are in place would have compounded the problem. We worked through six structured phases.
How we approached the recovery
Audit and diagnosis
Assessed the domain's current sender reputation using Google Postmaster Tools and GlockApps. Identified the root causes: cold outreach volume, legacy list hygiene failures, and missing technical authentication records.
Domain and infrastructure setup
Configured SPF, DKIM, and DMARC on the primary domain. Created a separate sending domain exclusively for cold outreach, insulating the main brand domain from any further reputation risk.
Platform deployment and CRM integration
Deployed MailerLite as the new email marketing platform and integrated it with the firm's CRM via API. This enabled real-time contact synchronisation, automated tagging, and shared suppression lists across both systems.
Staged list rehabilitation
Segmented the legacy database by mailbox provider and last engagement date. Activated the warmest segments first, ramping send volume in controlled micro-batches from 50 contacts per day upward to rebuild positive sender signals gradually.
Re-engagement and list pruning
Each dormant segment received a four-email re-engagement sequence over 12 days: prompt a reply, follow up softly, prompt a click, then a no-oriented close. Contacts who didn't engage were removed. Hard bounces were automated out immediately; soft bounces triggered a CRM task for manual outreach via LinkedIn.
Lead nurture and handover
With a clean, healthy list established, automated lead nurture sequences were activated: web form capture, CRM task creation, behaviour-triggered workflows, and manual oversight checkpoints for compliance. The advisory team was trained and handed a system they could run confidently.
Bounce management and contact recovery
Hard bounces were removed immediately on detection. For soft bounces, addresses that might be valid but temporarily unreachable, we built automation inside MailerLite to create a task in the CRM and trigger outreach via LinkedIn or another active channel, prompting direct confirmation of the correct email address.
Most businesses write off soft bounces and remove them automatically. That’s a mistake. For the broader re-permission and list hygiene process that runs alongside bounce management, the guide to importing and cleaning a cold email list covers the GDPR considerations and practical steps.
Automated lead nurture with human oversight
With deliverability restored, we implemented the full marketing infrastructure: automated web form capture, real-time CRM assignment, behaviour-triggered nurture sequences, and task creation for advisers.
Manual oversight checkpoints were built into every workflow. For a wealth management firm operating in a regulated environment, the balance between automation and human intervention is a compliance requirement.
Why do regulated firms have a harder time than most?
Financial services businesses carry a structural disadvantage in deliverability, and it comes from the compliance text they’re obliged to include. Mandatory risk warnings, regulatory disclosures, and lengthy legal footers are the same features spam filters have spent two decades learning to distrust: heavy boilerplate, low text-to-disclaimer ratio, and language that pattern-matches to financial promotion.
That firm can’t simply remove any of it. So the work has to happen everywhere else, which is why the technical foundation mattered more here than it would for an unregulated sender. With authentication correct, a warmed dedicated domain, and an engaged list, the disclaimers stop being the deciding factor.
Send volume ramped from 50 emails a day to a peak of 5,000 a day to the newsletter list, increased gradually so the sending reputation built rather than spiked. By the end of the rehabilitation, MailerLite was reporting zero spam complaints against the account, and mail that had previously gone to junk was landing in inboxes.
Results and impact
- Inbox placement restored, with client communications and calendar invitations reliably delivered rather than filed as spam.
- Zero spam complaints reported in MailerLite by the end of the rehabilitation period.
- Send volume scaled from 50 a day to 5,000 a day without triggering reputation damage.
- Hard bounces reduced dramatically through structured removal and validation workflows.
- Engagement rates increased as the subscriber list became smaller but substantially healthier.
- The advisory team regained full confidence in outbound communications for the first time in some time.
- A scalable, compliant email marketing infrastructure established and ready to support ongoing lead nurture and client communications.
Key takeaways for wealth management and professional services firms
Deliverability is infrastructure. For regulated financial services businesses, the ability to reach the inbox consistently is as operationally critical as client confidentiality and regulatory compliance.
- Protect your primary domain from cold outreach at all costs.
- Configure SPF, DKIM, and DMARC before sending anything. For a plain English explanation of what each record does and how to verify your setup, see the email authentication guide.
- Use monitoring tools such as Google Postmaster and GlockApps to maintain ongoing visibility.
- Segment aggressively, ramp volume gradually, and build list hygiene into your operating rhythm. Treat it as an ongoing process, not a one-off exercise.
- Re-engage dormant contacts before removing them. You’ll recover more than you expect.
- Integrate your email marketing platform directly with your CRM so marketing and client-facing teams always share the same data.
- Ensure automation is combined with human oversight wherever your regulatory environment requires it.
For a step-by-step guide to each of these areas, the email deliverability guide for small businesses covers the technical and behavioural foundations that apply across all sectors.
Are your emails landing in spam?
If your emails are landing in spam, your contact data is spread across systems, or your marketing depends on manual processes, we can design and implement a compliant, scalable solution that restores reliability and reduces the burden on your team.
Achieving similar results on other platforms
The strategy above is platform-agnostic. The tools change. The underlying principles don’t. The same outcomes can be achieved using HubSpot, Mailchimp, or ActiveCampaign, provided the data model, segmentation, and hygiene practices are implemented correctly from the outset.
HubSpot
Marketing Hub supports workflow-based nurture, built-in deliverability analytics, and domain authentication configuration directly within the platform.
Mailchimp
Provides domain authentication, engagement-based segmentation, and re-engagement campaign tooling. Well-suited to smaller lists where automation depth is less critical.
ActiveCampaign
Offers advanced automation workflows, engagement tagging, and deliverability reporting. A strong choice for firms that need conditional logic and deeper CRM integration.
Note: the most reliable approach in all cases is to define your segmentation, processes, and compliance requirements first, then choose the platform that supports them cleanly.