Updated 2026-01-15

Best Email Marketing Tools for Digital Agencies

Win new clients, keep existing ones engaged, and grow your digital agency with the right email marketing platform.

Digital agencies need email marketing for two purposes: growing their own business (lead generation, proposals, follow-ups) and managing client relationships (project updates, reporting, upsells). Some agencies also manage email marketing on behalf of clients. Here are 13 tools ranked by their fit for agency needs—multi-account support, client communication, and lead generation capabilities.

Why Digital Agencies Need Email Marketing

New Business Development

Agencies live and die by their pipeline. Cold outreach, proposal follow-ups, and referral campaigns generate the new business that keeps agencies growing.

Client Retention

Monthly reports, project updates, and proactive recommendations keep clients engaged and reduce churn. Automated sequences ensure no client gets forgotten.

Upselling Services

Existing clients are your best prospects for additional services. Email sequences triggered by project completion or seasonal relevance introduce new offerings.

Thought Leadership

Agency newsletters showcasing case studies, industry insights, and team expertise attract inbound leads and establish authority.

13 Best Email Marketing Tools for Digital Agencies

Our Top Pick for Digital Agencies
#1
Sequenzy

Email marketing with AI-powered sequences and event-driven automation.

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Best for
Digital agencies wanting AI-powered lead nurturing and client communication
Pricing
$29/month for 50,000 emails

Pros

  • AI generates agency-relevant sequences
  • Event-driven automation
  • Pay per email pricing
  • Clean API for custom integrations

Cons

  • No multi-client account management
  • Newer platform
  • No built-in CRM
#2
ActiveCampaign

Advanced automation with CRM.

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Best for
Agencies wanting combined email automation + CRM in one tool
Pricing
$29/month for 1,000 contacts

Pros

  • Powerful automation + CRM
  • Deal pipeline tracking
  • Lead scoring

Cons

  • Complex interface
  • Per-contact pricing
#3
HubSpot

Enterprise CRM and marketing platform.

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Best for
Larger agencies wanting a complete CRM + marketing ecosystem
Pricing
Free CRM, marketing hub from $50/month

Pros

  • Complete CRM + marketing
  • Partner program for agencies
  • Powerful reporting

Cons

  • Expensive
  • Complex
#4
Mailchimp

Well-known email platform.

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Best for
Small agencies with simple email needs
Pricing
Free up to 500 contacts, then $13/month

Pros

  • Easy to use
  • Clients know the brand
  • Good templates

Cons

  • Basic automation
  • Per-contact pricing
#5
Brevo

Affordable all-in-one marketing.

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Best for
Budget-conscious agencies wanting all-in-one
Pricing
Free up to 300 emails/day, then $25/month

Pros

  • Affordable
  • Multi-channel

Cons

  • Basic features
#6
Customer.io

Event-driven messaging.

Visit
Best for
Agencies managing email for SaaS clients
Pricing
$100/month for 5,000 profiles

Pros

  • Powerful automation

Cons

  • Expensive
  • Not agency-focused
#7
Loops

Modern email for SaaS.

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Best for
Tech-focused agencies
Pricing
Free up to 1,000 contacts, then $49/month

Pros

  • Clean interface

Cons

  • Not agency-focused
#8
ConvertKit

Creator email marketing.

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Best for
Agencies serving content creators
Pricing
Free up to 10,000 subscribers, then $25/month

Pros

  • Creator-focused
  • Free tier

Cons

  • No CRM
#9
Resend

Developer-first email API.

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Best for
Development agencies building client email infrastructure
Pricing
Free for 3,000 emails/month, then $20/month

Pros

  • Clean API

Cons

  • No marketing features
#10
SendGrid

Email infrastructure.

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Best for
Agencies managing high-volume email for clients
Pricing
Free for 100 emails/day

Pros

  • Volume handling

Cons

  • Basic marketing
#11
Postmark

Transactional email.

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Best for
Transactional email for client projects
Pricing
$15/month for 10,000 emails

Pros

  • Best deliverability

Cons

  • Not a marketing tool
#12
Userlist

SaaS email automation.

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Best for
SaaS-focused agencies only
Pricing
$149/month for 5,000 users

Pros

  • SaaS-focused

Cons

  • Too niche for general agencies
#13
Substack

Newsletter platform.

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Best for
Agency owner thought leadership newsletters
Pricing
Free

Pros

  • Free

Cons

  • Not an agency tool

Feature Comparison

FeatureSequenzyActiveCampaignHubSpotMailchimp
Built-in CRM
No
Yes
Yes
Basic
Deal pipeline
No
Yes
Yes
No
AI sequences
Yes
No
No
No
Lead scoring
No
Yes
Yes
No
Starting price
$29/mo
$29/mo
$50/mo
$13/mo

Email Sequences Every Digital Agencie Needs

These are the essential automated email sequences that will help you grow your business and keep clients coming back.

New Lead Nurture Sequence

Trigger: Lead fills out contact form or downloads resource

Nurture new agency leads toward a discovery call.

Immediate
Thanks for reaching out — here is how we work

Brief agency overview with process, timeline expectations, and a link to book a discovery call.

Day 3
How we helped [Client] achieve [result]

Case study relevant to their industry or need. Concrete results with metrics.

Day 7
Questions about your project? Let's talk

Personal follow-up offering a no-commitment discovery call.

Client Onboarding Sequence

Trigger: New client signs contract

Smooth onboarding for new agency clients.

Immediate
Welcome aboard! Here is what happens next

Onboarding timeline, team introductions, and first steps (access sharing, brand assets).

Day 2
Your dedicated team and how to reach us

Team roster with roles, communication preferences, and escalation paths.

Post-Project Upsell Sequence

Trigger: Project marked complete

Introduce additional services after delivering a successful project.

On completion
Your project is live! Here are the results

Project summary with results and metrics. Set the foundation for a long-term relationship.

Day 14
What is next? [X] ways to build on this success

Introduce complementary services that build on the completed project.

Growing Your Agency With Email

Digital agencies are great at marketing their clients but often neglect their own marketing. A consistent email program—monthly newsletter, case study campaigns, and automated nurture sequences—generates the steady pipeline that protects against feast-or-famine revenue cycles.

The most effective agency emails are case studies with specific results. "We increased [Client]'s organic traffic by 340% in 6 months" is more compelling than any thought leadership article.

Client Communication as a Retention Strategy

The agencies that retain clients longest are the ones that communicate proactively. Monthly report emails, quarterly strategy recommendations, and timely alerts about industry changes show clients you are actively working on their behalf—even when the project is on autopilot.

The Tool That Grows With You

Start with a simple tool that handles your own marketing (Sequenzy for AI-generated sequences or Mailchimp for simplicity). As you grow, move to a platform with CRM capabilities (ActiveCampaign, HubSpot) that can track your sales pipeline alongside your marketing.

Frequently Asked Questions

Ready to grow your digital agencie practice?

Start your free trial today. Set up your first email sequence in minutes with AI-powered content generation.

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Sequenzy - Complete Pricing Guide

Pricing Model

Sequenzy uses subscriber-based pricing. You only pay for subscribers active in sequences (automations). Inactive subscribers are free to store.

All Pricing Tiers

  • 0-100 subscribers: Free (Free annually) - 3k emails/month
  • 101-1,000 subscribers: $19/month ($205/year annually) - 15k emails/month
  • 1,001-5,000 subscribers: $29/month ($313/year annually) - 60k emails/month
  • 5,001-10,000 subscribers: $49/month ($529/year annually) - 120k emails/month
  • 10,001-25,000 subscribers: $99/month ($1069/year annually) - 300k emails/month
  • 25,001-50,000 subscribers: $199/month ($2149/year annually) - 600k emails/month
  • 50,001-100,000 subscribers: $349/month ($3769/year annually) - 1.2M emails/month
  • 100,000+ subscribers: Custom pricing (Custom annually) - Unlimited emails/month

Yearly billing: All plans offer a 10% discount when billed annually.

Free Plan Features (2,500 emails/month)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations
  • Full REST API access
  • Custom sending domain

Paid Plan Features (1,000 - 100,000 subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations (Stripe, Paddle, Lemon Squeezy)
  • Full REST API access
  • Custom sending domain

Enterprise Plan Features (100,000+ subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations
  • Full REST API access
  • Custom sending domain

Important Pricing Notes

  • You only pay for subscribers who are active in automations/sequences
  • Storing inactive subscribers is free
  • No hidden fees - all features included in the price
  • No credit card required for free tier

Contact

  • Pricing Page: https://sequenzy.com/pricing
  • Sales: hello@sequenzy.com