How Many Emails Should You Send Per Week? More Than You Dare

Lukas Vincevičius, Founder of MailyScaly · Updated 2026-07-08 · ~7 min read

The typical online store sends 2–4 newsletters a month. The reason is always the same: "we don't want to be annoying." Our recommendation to clients is 3–4 campaigns per week. Yes, per week. Before you close this tab thinking "they've lost it" — let me make the case, because behind this recommendation are our clients' revenue reports, not bravado.

Why "rarely but well" loses

1. The inbox is an attention auction

Your customer gets dozens of emails every day from other stores that don't hold back. By sending 3 emails a month you're not "respecting their attention" — you simply don't exist in their inbox, while your competitors exist daily. When the buying moment arrives, they'll remember the brand they saw yesterday, not three weeks ago.

2. Campaign revenue grows almost linearly

Each additional campaign reaches people at a different moment, with a different topic, a different offer. In practice, campaign revenue grows almost proportionally with frequency far longer than most people expect — because one email a week physically can't hit everyone's buying windows. The bulk of retention and repeat purchases comes precisely from campaigns — automations only cover the event-driven part of the journey.

3. Consistency improves deliverability

Mailbox providers like predictable senders: stable volumes, stable engagement. A store that goes quiet for three weeks and then blasts a mass sale email looks suspicious to the filters — sudden spikes are a classic reputation hit. Regular sending to engaged recipients builds reputation.

4. Unsubscribes are not the enemy

Yes, sending more often will increase unsubscribes. And almost always, the people leaving are the ones who weren't going to buy anyway — the list cleans itself, and the metrics improve for everyone who stays. The real enemy is spam complaints (the threshold is 0.1%), and those grow not with frequency but with worthless content and sending to people who stopped engaging long ago. The difference isn't "how much" — it's "to whom and what."

The conditions without which 3–4/week definitely won't work

Frequent sending without these four things is a recipe for disaster. With them, it's a revenue growth lever:

1. Segmentation. 3–4 campaigns a week doesn't mean every recipient gets all of them. Active buyers get more, colder contacts get less, "dormant" ones almost nothing (sunset). The average recipient actually sees 1–2 emails per week.
2. Content variety. Four "SALE –20%" blasts a week is spam. The mix that works: offer + education (how to choose, how to use) + social proof (reviews, customer stories) + news/behind the scenes. Bonus: campaigns are your A/B testing ground — what proves itself moves into your flows.
3. Solid deliverability. SPF, DKIM, DMARC and a clean list — before scaling volume, not after.
4. Metric monitoring. Spam complaints < 0.1%, unsubscribes < 0.3–0.5%, and most importantly — revenue per email: if it drops as you increase frequency, stop and fix the content.

A safe transition plan

A sudden jump from 2 emails a month to 16 is a bad idea on two fronts: to mailbox providers it's a reputation anomaly, to recipients it's a shock. Ramp up gradually over 2–3 months — and both your list and the filters adapt calmly.

When this advice does NOT apply

• A very small list (< 500–1,000 contacts) — grow it first with popup forms; frequency can wait;
• Narrow B2B or niche services — a weekly rhythm is often too dense there;
• No one to produce the content — one good campaign a week beats four empty ones. Frequency is a lever, not a goal.

Frequently asked questions