Nonprofit email marketing earns its place when it is built to produce a second gift, and the fastest way to get there is to fix things in order: list health first, then segmentation, then cadence, then copy. Most programs work that list in reverse, starting with subject lines, which is why a month of effort can move nothing measurable. One more thing has changed underneath everyone: open rate has been an unreliable measure since 2021, so the numbers worth steering by are click-through, revenue per thousand emails sent, and whether first-time donors come back.
Key Takeaways
- Email's real job is the second gift. Judge the whole program on first-to-second-gift conversion, not on list size.
- Fix in this order: list health, segmentation, cadence, copy. Rewriting copy on an unsegmented list is the most common way to spend a month and move nothing.
- Open rate has been inflated since 2021, because Apple Mail loads tracking pixels on delivery rather than when someone reads the message.
- Steer by click-through rate and revenue per thousand emails sent. Both survive the open-rate problem.
- Changing platforms moves the problem rather than solving it. List health, segmentation and cadence travel with you.
What nonprofit email marketing is actually for
Nonprofit email marketing is the practice of using email to turn people who know your organization into people who support it repeatedly. That last word is doing the work. Acquiring a donor is the visible half of fundraising; keeping one is where the money actually is.
The Fundraising Effectiveness Project put overall donor retention at 42.9% in 2024, with first-time donors retained at 19.4% and repeat donors at 69.2%. Recurring monthly givers reach as high as 90%. Roughly one in five first-time donors gives again, against close to seven in ten who have already given twice.
Email is the only channel you own that can reliably move someone across that gap. Social platforms decide who sees your posts. Search brings people who were already looking, which is what nonprofit SEO is for. Your list is the one audience you can reach on purpose, on a schedule you choose, and the only one that stays yours when a platform changes its rules.
Which sets the standard for judging the program. An email operation that grows the list, lifts engagement and never moves anyone to a second gift is doing the easy half of the work. The number that tells you whether email is working is the share of first-time donors who give again. List growth and engagement are worth tracking, and neither one pays for a program on its own.
Clickmill works with nonprofit teams on exactly this kind of measurement, and a short call is usually enough to tell whether it fits.
Why your open rate stopped meaning what it used to
Open rate has been an unreliable steering metric since 2021. That year Apple introduced Mail Privacy Protection, and according to Apple's documentation, remote content in a message is privately downloaded in the background when the message is received, rather than when the recipient views it. The feature also hides the recipient's IP address from the sender.
An email "open" was never directly observable. It is inferred from a tiny invisible image, the tracking pixel, loading when someone views the message. When that image loads on delivery instead, the pixel reports an open that nobody performed.
The practical consequences are worth being precise about. Your reported open rate is higher than your real one. The size of the gap depends on how many people on your list read mail in Apple Mail, which means it is not a fixed amount you can subtract, and it differs between two organizations quoting the same number. A falling open rate can now mean your list's mix of mail clients shifted rather than that your subject lines got worse.
This matters because of what most teams do next. The standard advice when opens drop is to rewrite subject lines and change send times. Sometimes that is right. Often the number moved for reasons no subject line touches.
Published benchmarks carry the same inflation. The Neon One Nonprofit Email Report puts the nonprofit average open rate at 28.59% and the average click rate at 3.29%, against an all-industry average open rate of roughly 21% to 21.5%. Nonprofits do genuinely outperform most sectors here. Just hold the open figure loosely, and compare yourself to your own trend line rather than to a pooled number from organizations whose lists look nothing like yours.
Learn more about how Clickmill approaches measurement for mission-driven organizations.
Start with list health
List health is the deliverability, consent, recency and accuracy of the addresses you send to. It comes first because every other improvement is multiplied or wasted by it.
Mailbox providers decide whether your email reaches the inbox partly by watching how people respond to it. A list carrying thousands of addresses that have ignored you for two years drags down those signals for everyone on it, including the donors who would have opened.
So sunset the unengaged, and make it a standing rule rather than an annual cleanup. A workable version: any contact with no click in twelve months gets one short re-permission email, and if that goes unanswered they come off the active send list. They are not deleted, and they can come back through any future form.
The objection is real and it is what stops most teams. Cutting four thousand addresses off a twelve-thousand-person list feels like going backwards, particularly when list size is the number the board has been shown all year.
The honest answer is that those people did not leave when you stopped emailing them. They were already gone, and the list was carrying the record of it. What you gain is better inbox placement for the eight thousand who remain.
Consent is the other half. Send to people who asked to hear from you, honor unsubscribes immediately, and keep a record of when and how each contact opted in. Rules vary by jurisdiction and your organization should get its own advice on the specifics.
The cost here is hours, not dollars. Budget a day to set the rule up and an hour a month to run it.
Clickmill is glad to talk through what this looks like on a list your size.
Segment your list into five groups
Email segmentation is the practice of sending different messages to different groups rather than one message to everyone. Five groups cover almost every nonprofit.
New donors, meaning anyone whose first gift landed in the last 90 days. They get the welcome series and the second-gift ask. This is the highest-value segment you have, because it is where the one-in-five retention figure gets decided.
Active donors, who have given in the last 12 months. They get impact reporting, campaign moments, and an invitation to become monthly givers. Success looks like upgrade rate and sustained giving.
Lapsed donors, who gave once and then stopped. They need a different message entirely, closer to "here is what happened while you were away" than to a standard appeal. Sending them the same campaign email as active donors is the most common segmentation failure.
Prospects, who are on the list but have never given. They get value before any ask: the work itself, the stories, the results. Asking too early is what teaches someone to ignore you.
Volunteers and event attendees, who gave time rather than money. Many of them will give money, and almost none of them will do it in response to an appeal written for donors.
Here is the part that surprises people. Segmentation is what lets you send more without wearing your list out, because each person hears from you less than the sum of your sends. Four segmented sends in a month can mean one email per person.
If five segments is more than your capacity allows, run two: new donors and everyone else. That alone outperforms a single undifferentiated blast, and you can add the others as you go.
Book a call with Clickmill if you want a second read on how to split your list.
How often should a nonprofit send emails?
For most organizations, once or twice a month to any given person, rising during a campaign moment or at year end. That is the frequency each contact experiences, which is a different number from how many emails your team sends.
Donor fatigue is real, and it is mostly a function of relevance rather than of frequency alone. People tolerate hearing from an organization often when what arrives is about them and worth reading. They unsubscribe from three emails a year that read as though they were written for somebody else. This is exactly why cadence sits after segmentation in the sequence: raising frequency on an unsegmented list will cost you.
Build in the send that asks for nothing. A short report on what the last round of giving accomplished, with no donate button, is what earns the right to ask twice more. Programs that only ever appear in an inbox with their hand out get read that way.
The newsletter deserves a word, since most organizations already have one. A nonprofit email newsletter is a format, and it does its job when each issue carries one specific outcome you want. It stops working when it becomes a roundup of everything that happened, which is how newsletters quietly turn into something nobody finishes.
Clickmill can help sanity-check a calendar like that before you commit to it.
What goes in the emails that renew donors
Three emails do most of the renewing: the welcome series, the second-gift ask, and the impact report. Copy still comes last on purpose. Rewriting subject lines on a stale, unsegmented list is the most common way to spend a month and move nothing, and with the first three steps in place the writing gets easier, because you finally know who you are writing to.
The welcome series is three emails over the first two weeks. The first thanks them and tells them exactly what their gift does, specifically, in the terms a person would use. The second shows the work, usually through one story rather than a summary of your programs. The third invites them into something small that is not another gift: follow the work, come to a thing, read the annual report.
The second-gift ask lands 60 to 90 days after the first gift. Most organizations wait for the year-end appeal, by which point the relationship has cooled. A short, specific, standalone ask in that window is close to free and it addresses the precise place the sector loses people.
The impact email reports what a gift did and asks for nothing. This is the one most often cut for time, and it is the one that makes the next ask land.
I learned why that email works from a church that asked me for nothing.
During my years in Hawaii, I went to a home church with my mentor, Daniel. It was small, thirty people or fewer, so we shared life together. People brought light snacks, we ate, and one person prepared a teaching while the rest of us talked and shared across a two or three hour evening. Daniel asked us directly what we were struggling with and what we wanted to learn, and he built the lessons around our answers.
What surprised me was that nobody ever asked me for anything. I could not remember a church in my whole life, Bible college included, where I was not asked to lead something, volunteer for something or teach something.
Daniel’s explanation was simple. Asking for volunteers is fine, and tithes and offerings are biblical. A house church that does not try to grow faster than it can handle just has no expenses. No rent, nothing to set up or tear down. It is your own house.
Because Daniel and that group had poured so much into me, I would have done anything he asked, gladly. He never had to ask.
A nonprofit does have to ask. The impact email is how you earn that kind of yes before you do.
Across all of them, the mechanics are simple and worth holding to. One ask per email. One primary link. Subject lines that describe what is inside rather than teasing it, because a subject line that wins an open and loses trust has cost you more than it earned. Write the way a person talks.
Clickmill is a call away if you want to compare notes on a series like this.
The three numbers to steer by
Click-through rate is the percentage of delivered emails where someone clicked a link. It survives the open-rate problem because a click requires a person. Published 2026 nonprofit ranges cluster around 3.0% to 3.3%, with click-to-open ratios near 10%. Click-to-open is clicks as a share of opens rather than of sends, so it inherits the open-rate problem and is the weaker of the two.
Revenue per thousand emails sent connects email to money, which nothing else on the dashboard does. Take the gifts attributable to a send, divide by the number delivered, multiply by a thousand. A send of 4,000 emails producing $1,200 in gifts is $300 per thousand. Track it per send and the comparison between a campaign appeal and a newsletter stops being a matter of opinion. It also prices the newsletter honestly, which is often the first time anyone has.
First-to-second-gift conversion is the program-level judgement: of the donors who gave for the first time in a period, what share gave again within twelve months. Against the Fundraising Effectiveness Project's 19.4% first-time retention figure for 2024, you now have a benchmark and a target.
One caution on all published benchmarks, including the ones above. They pool organizations with different list sizes, causes, and mail-client mixes, and the open figures carry the inflation described earlier. Your own trend line is a better instrument than any industry average. A click rate of 2.1% that was 1.4% two quarters ago is a program working, whatever the benchmark says.
When switching email platforms is the right call
The tool is rarely the constraint, and it is only fair to name the cases where it genuinely is.
Move when your current system cannot segment at all, so every send goes to everybody. Move when it cannot automate a welcome series, because sending those three emails by hand is work nobody sustains. Move when deliverability problems persist and the provider will not help you diagnose them. Move when your donor database and your email tool cannot see each other, so nobody can tell which email produced which gift.
Those are real, and they are worth the disruption of a migration. Budget for it honestly: rebuilding segments, automations and templates on a new platform takes weeks of someone's attention, and the list arrives in whatever condition it left in.
Before committing, apply one test: would this problem still exist on the new tool? A stale list, an unsegmented audience and a newsletter nobody finishes will all arrive intact at the new platform, usually with a month of migration work spent in the meantime.
Clickmill is happy to help think through that decision.
Frequently asked questions
What is a good open rate for nonprofit emails?
Published 2026 ranges cluster around 25% to 29% for nonprofits, with the Neon One Nonprofit Email Report putting the average at 28.59%, against roughly 21% to 21.5% across all industries. Treat any open rate as approximate: since 2021 Apple Mail loads tracking pixels on delivery rather than on view, so reported opens run higher than real ones by an amount that varies with your list. Compare yourself to your own trend, and steer by click-through.
How often should a nonprofit send emails?
Once or twice a month to any individual, rising during campaign moments and at year end. Segmentation is what lets your team's total send volume grow without any one person hearing from you more often. Include at least one send per quarter that reports results and asks for nothing.
How do you grow a nonprofit email list?
Ask at every point where someone already chose to engage: donation confirmations, event registrations, volunteer signups, and the site pages that draw the most traffic. Growth that comes from people who raised their hand is worth many times a purchased or scraped list, which damages deliverability for everyone on it.
Why aren't our emails getting donations?
Most often the sequence is running backwards. If the list carries a large unengaged segment, if everyone gets the same message, or if the only sends are appeals, those three conditions cap what any amount of good writing can do. Work them in order and measure revenue per thousand sent so you can see each fix land.
Should we switch email platforms?
Only when the tool cannot do something you need: segmentation, automation, deliverability support, or connecting to your donor database. Otherwise the constraint travels with you. The useful test is whether the problem would still exist on the new platform.
Where to start
Measure one number before changing anything else: of the people who gave for the first time last year, what share gave again. That figure reframes every other decision in this article, and most organizations have never calculated it. Clickmill is a digital marketing agency for mission-driven institutions, including nonprofits, churches, schools and private practices; if you want help building the program behind that number, book a call.
