There’s a quiet mistake that thousands of nonprofits make every week: they send the same email to every single person on their list.
The appeal to renew a lapsed gift goes to your most loyal monthly donors. The “welcome to our community” message goes to someone who’s been giving for seven years. The campaign update about your education program goes to supporters who only care about your housing work. It all goes to everyone, and over time, everyone stops paying attention.
This is how you train donors to ignore you. Not through bad writing, the wrong send day, or a weak subject line. Through irrelevance.
The fix is segmentation: grouping your supporters by what they care about, how they’ve given, and how they engage, and then sending each group something that actually fits. It sounds like it might require a data team or a sophisticated CRM. It doesn’t. A handful of simple segments and the right email marketing tool is all you need to start seeing results.
Here’s how to do it.
Why Segmentation Matters More Than List Size
Most nonprofits focus on growing their list. Segmentation asks a different question: are the right people getting the right messages?
A list of 500 highly engaged supporters who consistently open, click, and give will outperform a list of 5,000 cold contacts who tune out every email you send. Relevance drives response, and irrelevance doesn’t just produce silence. It produces unsubscribes, spam complaints, and long-term damage to your sender reputation, which affects whether your emails land in inboxes at all.
Segmentation protects your list and your deliverability while making every campaign more effective.
The Four Segments Worth Your Effort
You don’t need dozens of segments. Most nonprofits can get significant results from four well-defined groups:
1. Recent Donors: Supporters who’ve given in the last 12 months are your warmest audience. They already believe in your mission; they just need to be stewarded well. This group should receive impact updates, thank-you messaging, and soft upgrade asks. They’re not the audience for a hard acquisition appeal.
2. Interest-Based Groups: If your organization does work across multiple cause areas, such as education, housing, food access, and environmental programs, not every donor cares equally about every program. Grouping supporters by their area of interest allows you to send campaign-specific appeals that feel personal and relevant, rather than broadcasting every initiative to everyone.
3. Engagement Tier: Some contacts open every email. Others haven’t opened anything in six months. These two groups should not receive identical messaging. Highly engaged contacts can handle more frequent communication and direct asks. Lower-engagement contacts need warmer, lighter-touch outreach: more story, less solicitation.
4. Lapsed Donors: This is your re-engagement audience: people who gave at some point but have gone quiet. They’re still on your list, which means they haven’t fully walked away; they just need a reason to come back. Lapsed donors require a different tone than your active supporters. The email that works for them isn’t “Please renew your gift.” It’s “We’ve missed you. Here’s what’s happened since we last connected.”
How to Capture What Matters: Tags and Custom Fields
Segmentation only works if you have something to segment on. That means building a contact record that reflects what you actually know about each supporter.
Two tools make this practical:
Tags are labels you apply to a contact to capture moments and behaviors. “2025 Gala Attendee.” “Monthly Donor.” “Volunteer.” Tags are flexible. A contact can have as many as apply to it, and they’re ideal for tracking actions that occur at specific points in time.
Custom fields are ongoing attributes you define. An “Interest Area” field that captures which of your programs a supporter cares about most. A “Giving Level” field that reflects their typical donation range. Custom fields let you store structured information that stays relevant over time.
Together, tags and custom fields give you a donor profile that’s rich enough actually to use. When a new subscriber joins your list, a single well-chosen custom field, like “What area of our work interests you most?” can instantly make them segmentable for future appeals.
The rule of thumb: tags for moments, custom fields for attributes. You need both.
Building Targeted Groups: Filters in Practice
Once your contact data is in place, segmentation becomes a filtering exercise. In certain email platforms, you can combine filters to build precise groups without writing a single line of code.
Want to reach monthly donors who’ve been actively engaging with your emails? Filter by tag (“Monthly Donor”) + status (Active) + email engagement (Opened recent campaign). You’ve built a warm, loyal, reachable segment in seconds.
Want to find your lapsed audience? Filter for contacts who have NOT opened your last several sends. That’s your “gone quiet” group; the people worth a re-engagement series.
Want to find supporters whose giving anniversary is coming up? Filter by the date they were added to your list. A contact who joined around this time last year is your one-year milestone audience.
Each of these filters can be saved as a reusable list, so you only have to set them up once.
Re-Engaging Lapsed Donors (Without the Manual Work)
Lapsed donors are one of the highest-return segments a nonprofit can invest in because the hardest part of fundraising (introducing someone to your mission) is already done. These supporters gave once. With the right message, they can give again.
A simple two-email re-engagement sequence does most of the heavy lifting:
- Email 1: Reconnect. Lead with a story about impact. Remind them why they cared in the first place. No ask.
- Email 2: A gentle, low-pressure invitation to re-engage, such as a small gift, a newsletter sign-up, or an event. Make the action easy.
If neither email generates a response, it’s worth making a final decision about whether to keep those contacts on your active list. A smaller, engaged list serves your deliverability better than a large, silent one.
Recognizing Milestones: The Email Donors Actually Remember
One of the most underused tactics in nonprofit email marketing is the milestone acknowledgment. A giving anniversary. A birthday. A “thank you for two years of support” note.
These emails require almost no effort to set up, and they produce outsized loyalty. A donor who receives a personal acknowledgment on their first giving anniversary is far more likely to give again than one who only hears from you during campaign season.
In Benchmark Email, you can filter contacts by birthday or by the date they were added to your list, then send a targeted message to anyone with an upcoming milestone. Set it up once, refresh it periodically, and check the results.
Benchmark Email makes email segmentation simple for nonprofits, no data science required. Claim your exclusive 20% nonprofit discount and start building smarter donor relationships today.
About the Author:
Natalie Slyman is an experienced Content Marketing Manager at Benchmark Email with a strong B2B background and a knack for crafting pillar content that boosts SEO and brand authority. She regularly shares actionable insights, from remote-work strategies to AI-powered content workflows, via blog posts and webinars tailored for busy marketers.
