For agencies
We partner with digital agencies and consultancies as a specialist email delivery resource. You bring the client relationship, we bring deep email expertise. Your clients get better outcomes, you expand what you can offer without growing your team.
Why agencies work with us
Whether it's a platform migration, a deliverability crisis, or building automation from scratch — email work often falls outside what your team does day to day. We slot in as your specialist resource.
We're senior practitioners, not juniors learning on your client's account. We know the platforms, we know the gotchas, and we can hit the ground running without a lengthy onboarding.
The agencies we work best with bring us in repeatedly as their email arm. We're flexible on how we engage — project, retainer, or ad hoc — and we work the way you work.
What we cover
If your client needs it, we can probably do it.
Programme strategy, lifecycle design, copywriting, segmentation, A/B testing.
Nurture flows, onboarding sequences, re-engagement, cross-channel journeys.
Authentication, sender reputation, list hygiene, blocklist recovery.
Platform evaluation, RFP management, migration planning and execution.
CRM configuration, data flows, integrations, governance and attribution.
Flexible ongoing resource — weekly, monthly, or on-demand as you need us.
Why us
We're not generalist marketing consultants who do a bit of email. Metal Jelly is a two-person specialist practice — 15+ years of combined experience across email marketing, CRM, and marketing operations, in B2B and B2C.
One of us has spent years client-side at fintech and B2B SaaS companies. The other has worked inside an ESP — which means we understand deliverability and platform behaviour at a depth most practitioners don't.
We're platform-agnostic, senior-only, and easy to work with. No account managers, no junior handoffs. When you brief us, you get us.
Years combined experience
Depth on both sides of the market
Inside knowledge from the platform side
You always work with us directly
Platforms
How it works
No complicated onboarding. No long-term lock-in. Just a working relationship that delivers for your clients.
Tell us about your client and what they need. We'll give you an honest view of whether and how we can help — no obligation, no overselling.
We work directly with your client or behind the scenes, however you prefer. We can white-label our work or operate as a named specialist — your call.
We handle the work, you handle the relationship. We make you look good and your client gets specialist expertise they wouldn't otherwise have access to.
Get in touch
Tell us a bit about your agency and the kind of work you typically do. No hard sell — just a conversation about whether there's a fit.