How Often Should We Actually Be Emailing People?

By Tina Kelly

Every marketer eventually wonders: Are we sending too many emails? Not enough? Send too often and you quickly wear out your welcome, too rarely and your audience can forget who you are. There’s no universal “right answer” about how many emails to send, but following these four steps can help you find the number that works for you.

1. Start With Your Industry and Audience

Cadence varies widely by sector, and the gap is significant: Recent benchmark data puts the median B2C sender at roughly eight emails per subscriber per month, while the typical B2B sender lands closer to four. Retail and e-commerce organizations sit at the high end because subscribers expect a steady stream of promotions and new arrivals. B2B organizations, higher education institutions and nonprofits generally send far less, because their content is weightier.

Use these numbers as orientation, not instruction. What matters more is what your audience signed up for. If someone subscribed to a monthly newsletter, three emails a week is a breach of that agreement, no matter how good the content is. Set the expectation at the point of signup, then meet it consistently. A predictable rhythm builds familiarity. An erratic one feels like noise.

2. Let Quality Set the Pace

The most useful rule of thumb: Don’t send unless you have something worth sending. If your next email doesn’t offer real value — news your audience can use, a story worth their time, an offer that actually applies to them — wait until it does.

This flips the usual approach. Rather than picking a frequency and scrambling to fill it, let your content calendar determine the cadence you can realistically sustain. A strong monthly email will outperform four forgettable weekly ones every time.

3. Test, Then Watch Your Numbers

Once you have a working cadence, test it. Split your list and send one segment a slightly different frequency, then compare results across enough sends to see a real pattern rather than a one-time blip.

Watch these metrics closely as you test:

• Unsubscribes. The earliest warning sign of fatigue. Brevo’s 2026 benchmark puts the average unsubscribe rate at 0.46%, with the strongest performers closer to 0.05%, so if yours starts climbing, your cadence could be the culprit.
• Spam complaints. These carry direct deliverability consequences. Google advises bulk senders to keep user-reported spam rates below 0.1%, and senders who exceed 0.3% become ineligible for delivery mitigation — a threshold you can cross with surprisingly few complaints.
• Open and click rates. A gradual decline as you increase volume usually means fatigue, not bad subject lines.
• Conversions, not just engagement. More sends can lift total clicks while lowering the value of each one. Measure what the emails actually drive. If engagement drops as frequency rises, that’s your ceiling. Pull back and hold there. 

4. Better Yet, Let Subscribers Decide

The most reliable way to find the right cadence is to stop guessing and ask. A preference center lets subscribers choose what they hear about and how often — monthly instead of weekly, event news but not fundraising appeals.

It’s also the best alternative to an unsubscribe. Someone overwhelmed by weekly sends may happily stay on a monthly list if you give them the option — and that’s worth protecting, because major platforms now require bulk senders to offer one-click unsubscribe and honor those requests within two days. Giving people a way to dial back keeps subscribers you’d otherwise lose for good.

The Takeaway

There’s no magic number of emails that works for every organization. The right cadence is the one your audience expects, your team can consistently sustain and your subscribers continue to find valuable. When every message earns its place in the inbox, frequency becomes far less important than relevance.