What is broadcast email?

A broadcast email (also called an email blast) is a one-time marketing message sent to all subscribers on a list or to a defined segment, at a specific time, by a marketer. Unlike automated drip campaigns, broadcasts are manually scheduled and not triggered by individual user behavior.

According to Mailchimp's 2024 Email Benchmarks, the average broadcast email achieves 20-30% open rates and 2-5% click rates across industries. Top-performing broadcasts (often from creators with personal brand strength) reach 50-70% opens and 10-20% clicks.

How broadcast email works

A broadcast email flow:

1. List selection — choose a segment or full list
2. Content design — write the email and add visuals
3. Send time — schedule for optimal engagement window
4. Delivery — ESP sends to all recipients in the segment
5. Reporting — track opens, clicks, bounces, unsubscribes

Broadcasts are typically used for:

• Announcements — new products, features, events
• Newsletters — recurring opt-in editorial content
• Promotions — sales, discounts, time-bound offers
• Re-engagement — winback campaigns
• Editorial sends — interviews, op-eds, longform

A 2024 Beehiiv newsletter benchmark report found that creator-driven broadcasts (newsletters with strong personal brand) achieve 2-3x the engagement of corporate-style broadcasts. The reason: subscriber relationship strength matters more than perfect copy.

Broadcasts are usually sent from marketing email infrastructure (Mailchimp, ConvertKit, Beehiiv, ActiveCampaign), separate from transactional email infrastructure to protect deliverability reputation.

According to ConvertKit's 2023 creator study, broadcasts on Tuesdays through Thursdays at 10am-11am local time have the highest engagement, though variance by audience is significant.

Examples of broadcast email in practice

Example 1: Morning Brew daily newsletter

Morning Brew sends a daily broadcast to 4M+ subscribers. The newsletter combines business news, witty commentary, and ad inventory. The format generates eight-figure annual ad revenue, making Morning Brew a $75M+ acquisition by Insider Inc.

Example 2: Product launch announcement

SaaS companies typically send a single broadcast at product launch announcing the new feature, its benefits, and the CTA. Notion's launch broadcasts have driven 100k+ trial signups within 48 hours of major releases.

Example 3: Solopreneur newsletter

Solopreneur creators like Dan Koe and Justin Welsh send weekly broadcasts to 100k+ subscribers, monetized via course sales, product affiliate links, and direct sponsorships. Open rates of 40-50% reflect strong creator-subscriber relationships.

When to use broadcast email

Use broadcast email when:

• You're announcing a one-time event or product launch
• You're sending recurring newsletter content
• You're promoting a time-bound sale or offer
• You need to reach the full list quickly
• You're re-engaging dormant subscribers
• You're conducting one-time market research surveys

When NOT to use broadcast email

• Transactional needs — Use transactional infrastructure (receipts, resets)
• Behavioral triggers — Use drip campaigns (signup, abandonment, anniversary)
• High-personalization sends — Use segmented automation, not broadcast
• Frequent unaligned sends — Erodes engagement over time

Broadcast vs related concepts

Broadcast and newsletter overlap heavily. Newsletter is a subscription-based broadcast; broadcast is a generic one-shot send.

Common mistakes with broadcast email

• Sending too frequently — More than 1-2 broadcasts per week erodes engagement.
• No segmentation — Broadcasting to inactive segments hurts deliverability.
• Generic subject lines — The subject line determines 80%+ of open rate.
• No CTA clarity — Each broadcast should have one specific CTA.
• Ignoring unsubscribes — High unsubscribe rates trigger ESP deliverability penalties.

Frequently asked questions about broadcast email

What is the difference between broadcast email and a newsletter? A newsletter is a recurring (weekly, biweekly, monthly) opt-in subscription email with editorial content. A broadcast email is any one-time send to a segment, including but not limited to newsletter editions. All newsletter sends are broadcasts; not all broadcasts are newsletters.

What's a typical broadcast email open rate? Mailchimp 2024 benchmark: industry average 20-30%. Creator newsletters often reach 40-60%. Below 15% indicates either low list quality or weak subject-line strength.

How do I implement broadcast email? Build your list via opt-in signups. Choose an ESP (ConvertKit, Beehiiv, Mailchimp). Design the email template (HTML or rich text). Write subject line and body. Schedule for optimal send time. Monitor opens, clicks, and unsubscribes post-send.

What tools support broadcast email? ConvertKit, Beehiiv, Mailchimp, ActiveCampaign, Substack, and Ghost are popular for broadcast and newsletter sends. Beehiiv and Substack are optimized for creator newsletters. Marketo and HubSpot for enterprise marketing automation.

Can broadcast emails be personalized? Yes, but at lower depth than drip or nurture sequences. Common personalization: first name token, dynamic content blocks based on segment attributes (industry, location, plan tier). Heavy personalization usually requires moving to automated sequences.

What's the optimal send time for broadcast email? According to ConvertKit 2023 data: Tuesdays-Thursdays 10am-11am local time perform best on average. However, audience-specific testing matters more than averages. Run send-time A/B tests over 6-8 weeks to find your audience's optimal window.

How PostKit relates to broadcast email

PostKit doesn't currently include native broadcast email features. However, generated social media content from PostKit is commonly repurposed into newsletter and broadcast email content by users. A typical pattern: solopreneurs pull a week's worth of LinkedIn posts and Instagram captions from PostKit, then adapt one or two as the week's newsletter for their email list. The cross-channel adaptation multiplies content ROI.

Related glossary terms

• Drip campaign — Automated multi-message adjacent format
• Nurture sequence — Conversion-focused drip subset
• Transactional email — Event-triggered functional email
• Newsletter — Recurring subscription email
• Engagement rate — Open/click metrics that measure broadcast success

Sources

• Mailchimp 2024 Benchmarks
• Beehiiv newsletter benchmarks
• ConvertKit creator economy reports