Meetcatcher

How to get clients for email marketing agency

In short

Email agencies win clients when a company feels a cost it can measure: newsletters landing in spam, a peak season with no flows ready, or a replatforming that lost half the automations. Lead with a measured gap, not with design samples. Shopify agencies and paid social agencies send the best clients. Generic newsletter tips on social media mostly reach other marketers.

Where email retainers really start

Most online shops and B2B newsletters already send email, so you rarely sell the channel itself. You sell a fix for a problem the owner can see in numbers. Since Gmail and Yahoo started enforcing their bulk sender rules in 2024, and Outlook followed in 2025, brands without proper authentication or one-click unsubscribe lose inbox placement quietly. At the same time, many e-shops run only a welcome email and a basic abandoned cart flow, and leave post-purchase and win-back flows empty.

The techniques below start from evidence you collect yourself: a welcome flow benchmark from 40 shops in one niche, a check of public DNS records, a peak season plan sold eight weeks before Black Friday, and a fee model tied to flow revenue. In a typical small shop, flows should bring 18–31% of email revenue within six months, which gives the owner a clear reason to keep paying. The deliverability basics in our email marketing guide are a good checklist to share with prospects.

Your best buyers are founders and e-commerce managers who know email matters but have nobody to own it. They do not want another agency newsletter in their inbox. Meetcatcher lets you meet them on a ten-minute video call, matched on both sides, so you can show one flow gap from their niche and hear about their stack instead of guessing it from the outside.

5 ways to get new clients

  1. 1

    Benchmark the welcome flows of 40 shops in one niche

    Subscribe with a test address to 40 shops in one niche, such as pet food or outdoor gear. Track how many emails arrive in 14 days, when, and with what offer. Publish the anonymised results as a short report. Owners compare themselves at once, and the report opens calls with people who see they fall behind.
  2. 2

    Check DMARC and one-click unsubscribe before peak sending

    DMARC is a public DNS record that tells inboxes how to treat fake mail from a domain. Check it for brands you plan to talk to, plus the unsubscribe header in a newsletter you received. Offer a fixed two-day fix of SPF, DKIM, DMARC alignment and unsubscribe. Many brands only notice the problem when open rates drop by a third.
  3. 3

    Sell a peak season plan eight weeks before Black Friday

    In early October most shops still have no plan for November. Offer a fixed package: list clean-up, a warm-up schedule for the larger volume, segments for past buyers and a calendar of 9–12 sends. It has a hard deadline, so decisions come in days, and a good season is the easiest reason to sign a retainer in January.
  4. 4

    Charge a share of flow revenue above a baseline

    Agree a small fixed fee per flow plus 8–12% of the revenue flows bring above the last three months' average. Owners like paying from results they can see in their email tool's reports. Keep it to flows only, not campaigns, so the numbers stay clean and nobody argues about who earned which sale.
  5. 5

    Run a sunset clean-up for old B2B newsletter lists

    B2B SaaS lists collect years of inactive subscribers who never open. They raise spam complaints and hurt every send. Offer a one-off clean-up: a short re-permission email, then removal of everyone who stays silent for 90 days. Smaller lists often get more replies, and the client sees it in the first month.

Channels that work best

  • Shopify and e-commerce build agencies

    Top channel    They launch stores every month and rarely want to own flows, segments and list health afterwards.

  • Paid social agencies for online shops

    Strong    Rising ad costs push them to prove what happens after the click, and email keeps those buyers.

  • Email tool partner directories

    Strong    Owners who already pay for an email tool look there for help when results stall.

  • Niche benchmark reports

    Supporting    Owners share data about their own niche internally, which builds trust before any call.

  • General newsletter tips on social media

    Limited    They attract other marketers and copywriters, while shop owners look for answers to their own numbers.

Creative ways to win clients through partners

  • Shopify agencies doing replatforming

    When a shop moves from another platform to Shopify, flows, consent records and subscriber tags often get lost in the move. Offer the agency an email migration line item in its quote: export, consent check, rebuild of the key flows and a test plan for launch day. The agency avoids angry calls after go-live, and you meet the client at the moment it needs you most.

  • Paid social agencies for e-commerce

    Paid social agencies are judged on return on ad spend, but buyers who never come back make their numbers look worse. Agree a shared monthly report: they bring first-time buyers, you show repeat purchases from post-purchase and win-back flows. Each refers clients who need the other half, and the client sees one joined-up result instead of two agencies blaming each other.

  • Shopify app vendors for reviews or loyalty

    Review and loyalty apps send events, such as a new review or points earned, that work best inside email flows. Their customer success teams get questions they cannot answer about flows. Offer a fixed package for those shops that puts the events to work in flows. The vendor reduces churn, and you get introductions to shops that already invest in retention.

Numbers to aim for

Targets for a small team. Adjust them to your size.
18–31%Share of email revenue from flows by month sixUnder 15% usually means key flows are missing or broken.
1 in 4Peak season packages that become retainersBook the January review call before the season starts.
“Your copy doesn’t matter if Gmail doesn’t trust you.”
Email deliverability expert
Read: How many onboarding emails should a B2B SaaS send?

Frequently asked questions

How much should an email marketing agency charge for a retainer?

Small European agencies usually charge €900–2,600 a month for a shop with up to 50,000 subscribers, covering flows, 4–8 campaigns and reporting. One-off flow builds often cost €350–900 per flow. Revenue share models work best on top of a smaller fixed fee, not instead of it.

Should an email marketing agency specialise in one email tool?

Mostly yes. Klaviyo work for online shops and HubSpot or Brevo work for B2B newsletters attract different buyers with different reports. Pick the tool most of your past clients used, get listed in its partner directory and build your benchmarks for that tool's users.

Can an email agency use cold email to find clients?

Be careful. In the EU, unsolicited marketing email rules are strict, and a deliverability agency with spam complaints loses credibility fast. Contact one relevant person at a time with a reason that fits their business, keep it short, and stop when they say no. Partners and personal calls work better than volume.

How long does it take to show results from email flows?

A welcome and abandoned cart flow usually shows sales within 2–3 weeks on a shop with steady traffic. Post-purchase and win-back flows need 2–4 months, because buyers must reach the next buying moment. Agree on these timelines in the first call, so nobody calls the work a failure after the first month.

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