Email Marketing Mistakes & Why Most Email Campaigns Fail (And How to Fix Them)

There’s nothing more discouraging than pouring hours into a campaign, hitting send, and then... crickets. Low opens, hardly any clicks, and zero replies can make you wonder whether email still works at all. The truth? It does but most teams repeat the same email marketing mistakes that quietly drag down performance.

If you rely on email to inform residents, nurture leads, or drive online sales, underperforming campaigns aren’t just frustrating they’re wasted budget and missed trust-building moments with your audience.

In this guide, we’ll unpack why promising campaigns fall flat, what’s really going on behind low engagement numbers, and how to rebuild email as a steady, predictable revenue and engagement channel whether you’re running public information programs or ecommerce promos.

TL;DR:

• Most inbox results suffer because goals, segments, and messaging aren’t lined up not because “email is dead.”
• The biggest issues show up in list quality, relevance, subject lines, and a missing feedback loop between metrics and strategy.
• A light, structured audit plus a few core automation flows can turn email into one of your highest ROI channels.

Why so many email campaigns miss the mark

Across governments, utilities, and high growth brands, the pattern is nearly identical: a small team sends newsletters or promos whenever there’s “something to say,” watches open rates in their email platform, and hopes for the best. The backlog of more strategic tasks grows, but email just keeps limping along.

The underlying problem is usually misalignment. The audience, message, and metrics don’t match. A resident on a city alerts list sees sales-style content. A warm B2B lead gets the same email as a cold prospect. Leadership wants revenue, but the team is judged on list size and send volume. That gap between what the channel is doing and what the organization needs from it is where most campaigns fall apart.

If this sounds familiar, you’re not alone. Industry benchmark reports from providers like Mailchimp, Campaign Monitor, and HubSpot’s latest email benchmark data consistently show that average results leave a lot of money and engagement on the table with typical cross industry open rates in the mid 30s to low 40s and click through rates of only around 2 to 3%. When email is treated as a one off “blast” tool instead of an ongoing, measured program, performance rarely rises above those baselines.

9 common email marketing mistakes (and what to do instead)

Let’s get specific. When we audit client programs at Setsail, we see the same patterns again and again across both public sector communication and private sector growth campaigns.

Mistake 1: No clear goal for each send

Many teams send updates because “it’s been a while,” not because they know what action they want a subscriber to take. One email tries to cover a new program launch, a hiring update, three blog posts, and a sale. Results feel “meh” because the signal is buried. Give every campaign a single primary goal (click to register, reply with feedback, request a quote, complete a form) and design the subject line, content, and CTA around that.

Mistake 2: Vague or clickbaity subject lines

Subject lines like “Newsletter #12” or “Important update” don’t earn attention, while over hyped wording trains subscribers not to trust you. Strong subject lines are specific, honest, and human: “New watering schedule for July,” “Get your rebate before September 30,” or “We fixed three bugs you told us about.” If you need more direction here, pair campaigns with a simple testing plan or lean on a copy partner who lives in the inbox.

Mistake 3: One size fits all sending

Sending the same email to every contact residents and businesses, donors and volunteers, cold leads and customers guarantees that large chunks of your list see irrelevant content. This is one of the most common email marketing mistakes for teams without a dedicated lifecycle marketer. Start simple: create at least two or three segments (for example: current customers, prospects, and internal stakeholders) and commit to at least one message per segment that feels written just for them.

Most underperforming email programs don’t need a new platform they need clearer goals, tighter segments, and a simple habit of testing and learning.

Mistake 4: Talking about yourself, not the reader

“We’re excited to announce…” is fine once in a while. But if every email starts with your priorities, readers tune out. In citizen-facing campaigns, that might look like long updates about internal processes instead of clear steps residents need to take. In ecommerce or B2B, it shows up as feature lists instead of outcomes. Flip the script: lead with the situation your reader is in, the outcome they want, and then how your program, service, or offer helps.

Mistake 5: Inconsistent cadence

Many lists swing between silence and sudden bursts of messages around big campaigns. That pattern makes it hard to build trust or forecast results. A steadier rhythm even if it’s just one thoughtful send every two weeks plus a few automation flows gives you cleaner data, fewer unsubscribes, and a better read on what actually moves the needle. A simple content calendar, shared with your wider marketing team, can keep everyone aligned.

Mistake 6: Weak list hygiene and deliverability

If your emails land in spam or promotions folders, even perfect creative won’t help. Old addresses, purchased lists, and high bounce rates damage your sender reputation. At minimum, you need regular list cleaning, confirmed opt in for new contacts, and basic authentication set up (SPF, DKIM, DMARC) with your IT team or email service provider. Most modern platforms like Klaviyo or Mailchimp offer clear documentation, and your marketing agency should be comfortable partnering with your technical team here.

Mistake 7: Forgetting mobile and accessibility

Recent email client studies show that mobile apps now account for roughly 40 to 50% of all email opens, and more than 40% of people delete emails that aren’t optimized for mobile. Yet many campaigns still use tiny fonts, dense paragraphs, and graphics with important text baked into images. That creates friction for busy people and screen readers alike. Design with large, legible text, clear buttons, high contrast, and meaningful alt text. Keep key messages high in the email so people scanning on a bus ride or between meetings still see what matters.

Mistake 8: No testing or learning loop

Teams often switch subject line styles or layouts based on gut feel rather than data. Then, six months in, no one can answer basic questions like, “What type of content actually drives replies?” or “Which segment clicks through most often?” Test one variable at a time subject line, sender name, headline, or CTA and use those insights to shape the next send. Over time, this turns your list into a reliable feedback channel, not just a megaphone.

Mistake 9: Tracking vanity metrics only

Open and click rates still matter, but they’re only part of the story. For public sector campaigns, look at downstream actions like completed forms, event attendance, or 311 calls. For ecommerce and B2B, tie emails to revenue, pipeline, and customer lifetime value using UTM tracking and your analytics platform. When leadership sees that email contributes to measurable outcomes, it’s far easier to secure budget for better content, automation, and list building.

Wondering, “What are the most common email marketing mistakes in teams like ours?” If you recognize three or more of the issues above, you’re in the majority and your program has plenty of upside.

How to fix a failing email program (without starting from scratch)

You don’t need a brand new platform or a six month rebuild. A focused, step by step reset is usually enough to change the trajectory of your results.

Step 1: Run a fast email audit

Pull the last three to six months of sends. For each, record the goal, audience, subject line, open rate, click rate, and key action (registrations, purchases, replies). This simple spreadsheet gives you a baseline and often reveals quick wins: subject lines that clearly outperform others, segments that are more engaged, or content types that consistently fall flat. If you’d like a structured template, our team shares one during email and marketing automation engagements.

Step 2: Clarify audiences and segments

Next, outline who you actually email. Typical examples: residents vs. businesses, prospects vs. customers, or new vs. long time subscribers. For each group, write one sentence about what they care about and what email should help them do. Then check your current lists and tags inside tools like Klaviyo, Mailchimp, or your CRM. Often, a few new segments and better naming conventions create far more relevant messaging with the same content workload.

Step 3: Build or refresh core automation flows

Automated journeys frequently outperform one off blasts because they reach people at the right moment. For most organizations, the highest impact flows are: welcome/onboarding, post purchase or post program follow up, and re-engagement for inactive contacts. Start with one flow, map 3 to 5 concise emails, and measure actual outcomes. For more advanced setups, tie automation into your broader marketing automation strategy so email, forms, and ads work together. In our work with GVA Brands, for example, segmented campaigns and automated sequences contributed to a fourfold increase in email driven revenue you can see the details in our GVA Brands ecommerce case study.

Step 4: Create a 90 day testing plan

Pick one question per month you want to answer, such as “Do urgent or benefit-led subject lines perform better for our list?” or “Does a single CTA outperform multi-link newsletters?” Set up A/B tests, define what “success” looks like, and review results in a recurring meeting. This approach keeps experimentation manageable and builds a culture where decisions follow data, not just opinions.

Step 5: Connect email to your ROI framework

Email shouldn’t live in a silo. Map each key flow and campaign to specific stages of your customer or citizen journey: awareness, consideration, action, and retention. Then connect that back to your organization’s growth plan. For Setsail clients, this happens inside our ROI Framework, which links every email initiative to measurable KPIs like leads, applications, sales, or completed civic actions.

What “good” email marketing looks like

Healthy programs share a few traits: a clean, engaged list; clear goals for each message; content that sounds like it was written by a real person; and consistent reporting against business outcomes. Open and click rates are solid, but more importantly, decision makers understand how email supports their larger objectives.

For a municipality, that might mean higher completion rates on permit applications and steady attendance at community events. For an ecommerce brand, it could be a meaningful share of revenue from automated flows and campaigns that align with paid media and SEO efforts. In both cases, email is treated as a strategic lever, not an afterthought.

When to bring in outside help

If you’re reading this and thinking, “We know these issues, but we don’t have the time or internal expertise to fix them,” that’s usually the signal to partner with a team that lives and breathes lifecycle marketing. An experienced partner can audit your current setup, design a realistic roadmap, and work directly with your internal stakeholders so email supports both short-term campaigns and long-term growth.

At Setsail, we often connect email strategy with broader digital strategy, conversion focused websites, and performance media. If you’d like to see what that could look like for your organization, you can Get Started with a short discovery call.

FAQs

What is a good email open rate today?

Because of privacy changes like Apple’s Mail Privacy Protection, open rates can be inflated. Recent benchmark reports put average cross industry open rates roughly in the mid 30s to low 40s percent range, with click through rates around 2 to 3%. Instead of chasing a single “good” number, track your own trends over time and focus on improving clicks and conversions.

How often should we send marketing emails?

For most organizations, a steady cadence of at least one to four emails per month supported by always on flows like welcome, post purchase, and re-engagement sequences is enough to stay top of mind without overwhelming subscribers. The key is consistency and clear expectations, not sending as much as possible.

Do we need a new email platform to fix our results?

Usually, no. Most underperforming programs improve dramatically by tightening goals, cleaning the list, improving segmentation, and adding a few core automation flows. A platform change is only necessary if you’re facing serious deliverability issues, compliance requirements, or feature gaps your current tool can’t solve.

‍