Email is the most underused channel in small business marketing. It costs almost nothing, owners ignore it because they assume nobody reads it, and yet the open rates for small local senders consistently beat the industry average by a wide margin.
The DMA's 2023 Marketer Email Tracker found that email delivers an average ROI of $42 for every $1 spent — the highest of any digital channel by a significant margin. For local businesses specifically, Klaviyo benchmarks show 30-40% open rates and 5-8% click rates, well above the 20% and 2% averages for national brands.
Here's the minimum viable email program that captures most of that upside.
The minimum viable email program
1. A welcome email the moment someone signs up or finishes a service. Personal, signed by the owner. Welcome emails generate 4x the open rate and 5x the click rate of standard sends, according to GetResponse benchmark reports.
2. A 30-day follow-up checking in and asking for a review. Pair this with a one-tap review link and you'll outpace 80% of local competitors on review velocity.
3. A quarterly newsletter — useful seasonal tips, not sales pitches. The 80/20 rule applies: 80% genuinely useful, 20% promotional. Audiences unsubscribe from pitchy lists fast and unsubscribes hurt deliverability.
4. An annual 'we miss you' to anyone who hasn't bought in 12+ months with a small incentive to come back. McKinsey's research suggests winback campaigns reactivate 10-25% of lapsed customers at a fraction of new-acquisition cost.
Four emails a year. That's it. Most businesses that run just this sequence see a 15-20% lift in repeat revenue inside a year.
Deliverability: the silent killer
Authenticate your domain with SPF, DKIM, and DMARC. Google and Yahoo's 2024 sender requirements mean that unauthenticated bulk mail goes straight to spam — your beautifully written newsletter never even reaches the inbox.
Warm your list slowly. Don't import 2,000 contacts and blast them on day one. Send in smaller batches and watch your open rates. Spamhaus and other reputation services punish sudden volume from new senders.
Subject lines that get opened
Mailchimp's analysis of billions of emails found that subject lines between 30 and 50 characters perform best, that personalization (first name, location) lifts open rates 10-26%, and that question marks and curiosity-driven phrasing consistently outperform feature/benefit copy.
Avoid spammy patterns: ALL CAPS, multiple exclamation marks, words like 'free' in the first three. Modern spam filters are forgiving but not stupid.
Measuring what matters
Track open rate, click rate, unsubscribe rate, and — crucially — attributed revenue. Most email platforms can tag UTM parameters automatically. Pair this with conversion tracking in GA4 to see exactly how many bookings each email drove.