MailerLite Marketing Analytics: Email Performance and Campaign Data in Your Daily Briefing

MailerLite Marketing Analytics: Email Performance and Campaign Data in Your Daily Briefing

The MailerLite integration in Prooflytics pulls campaign performance, subscriber growth, click map data, and e-commerce revenue into your daily marketing briefing. Once connected, you see which acquisition channels produce subscribers who actually engage - and which campaigns produce revenue, not just opens.

Key takeaways

1. MailerLite tracks opens, clicks, orders, unsubscribe reasons, and click map data per campaign - more granular than most entry-level email platforms at this price point.
2. MailerLite's native custom reports show campaign performance in isolation - Prooflytics extends that view by connecting email data to your paid channel acquisition costs.
3. E-commerce integration (Shopify, WooCommerce) surfaces revenue per campaign directly in MailerLite's API, which Prooflytics pulls into the daily briefing as a revenue-per-send trend.
4. Subscriber growth rate benchmarks for growing SMB businesses: 3-8% month-on-month for new lists, 1-3% for mature lists over 10,000 subscribers.
5. Setup is OAuth-based, takes under 5 minutes, and loads 30 days of historical campaign data on first connection.

What data Prooflytics pulls from MailerLite

MailerLite's REST API exposes detailed campaign and subscriber data that most teams never connect to their broader marketing reporting stack.

Campaign performance metrics:

• Open rate per campaign (unique and total)
• Click-through rate (CTR) and click-to-open rate (CTOR)
• Click map data - which links in each campaign received the most clicks
• Unsubscribe rate and unsubscribe reasons (when subscribers provide them)
• Bounce rate (hard and soft)
• Spam complaint rate per campaign

Subscriber metrics:

• Net new subscribers per day and per campaign
• Subscriber growth rate and total list size trend
• Subscriber source (form, landing page, API, manual import)
• Engagement tier distribution (active, cold, disengaged)
• Unsubscribe trends by segment and campaign type

Automation metrics:

• Automation step open and click rates
• Conversion events triggered (if e-commerce is connected)
• Step drop-off rate within automation sequences

E-commerce metrics (when Shopify or WooCommerce connected to MailerLite):

• Revenue attributed per campaign
• Revenue per email sent
• Total email-attributed orders
• Average order value from email traffic

What you can do once MailerLite is connected

See cost-per-subscriber by acquisition channel. MailerLite records where each subscriber came from - which form, landing page, or import source. When you connect MailerLite alongside Meta Ads or Google Ads data in Prooflytics, you can trace paid campaign spend to subscriber count and then to that subscriber's email engagement over 30 days. A Meta campaign that produces 200 subscribers at $2 per subscriber is worth less than one that produces 80 subscribers at $5 each if the first cohort disengages in week two.

Track revenue per send as your north star email metric. Most teams report on open rate. MailerLite's e-commerce integration surfaces revenue per email sent at the campaign level - which is the metric that actually tells you whether email is contributing to the business. If your welcome series generates $1.20 per send and your monthly newsletter generates $0.15 per send, that is an allocation signal, not just a reporting data point.

Identify which campaigns deserve promotion vs. pause. MailerLite's click map data shows which links in each email drive the most clicks. Prooflytics surfaces campaigns with anomalous performance - sudden open rate drops, CTR spikes, or bounce rate increases - in the daily briefing so you can investigate before the next send. An unexplained bounce rate increase above 2% is a deliverability signal that requires immediate attention.

For a complete view of email performance benchmarks by platform, the email marketing benchmarks 2026 guide covers open rates, CTR, and revenue per send across MailerLite, Klaviyo, Mailchimp, and ActiveCampaign.

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Industry benchmark: email performance norms for SMB and DTC brands

MailerLite's primary user base is SMBs, solo marketers, and small DTC brands. Email performance benchmarks for this segment differ from enterprise email programs because list quality and segmentation vary more widely.

Open rate benchmarks (2026, MailerLite user base):

• Broadcast campaigns: 18-28% average open rate
• Automated welcome sequences: 35-55% open rate on step 1, declining to 20-35% by step 3
• Re-engagement campaigns: 10-18% open rate (lower by design - the segment is disengaged)

CTOR benchmarks:

• Content-focused emails: 15-25% CTOR
• Promotional emails: 8-15% CTOR
• Transactional/trigger emails: 25-40% CTOR

The ICP problem this creates: MailerLite users often benchmark their performance against industry-wide email averages that include enterprise senders with large, aged lists. The relevant comparison for an SMB or DTC brand is within-platform benchmarks for the same company size and industry segment. Prooflytics shows your MailerLite performance against your own 30-day and 90-day trends rather than generic industry averages, which removes that benchmarking noise.

Prooflytics flags campaigns that deviate more than 25% from your account's rolling average in either direction - an anomalous high-performer worth understanding as much as an underperforming send that needs diagnosis.

How to connect MailerLite to Prooflytics

1. Go to Settings - Data Sources in your Prooflytics dashboard and search for MailerLite.
2. Click Connect and authenticate with your MailerLite account credentials. MailerLite uses API token authentication - you will need to generate a token in MailerLite under Integrations - API.
3. Paste the API token into the Prooflytics connection field and confirm.
4. Select the account to sync if you manage multiple MailerLite accounts from the same API token.
5. Data appears in your briefing within 24 hours. 30 days of historical campaign data loads on first connection.

Where to find your MailerLite API token: log into MailerLite - click your account name in the top right - Integrations - MailerLite API - click "Generate new token". Copy the token immediately; MailerLite does not display it again after you navigate away.

If e-commerce revenue data is missing: MailerLite's revenue attribution requires that the e-commerce integration (Shopify or WooCommerce plugin) is active on your store and that the MailerLite tracking script is installed on the order confirmation page. Without the tracking script, purchase events do not flow back into MailerLite's attribution and will not appear in Prooflytics.

If automation data is missing: Automation performance data requires MailerLite Advanced plan. Free and Growing Business plan accounts do not expose automation sequence analytics through the API.

MailerLite vs Mailchimp vs ActiveCampaign: what the data comparison shows

MailerLite is positioned as a cost-effective alternative to Mailchimp for SMBs that do not need the full Mailchimp feature set. At comparable list sizes, MailerLite's deliverability rates are competitive with Mailchimp, and its reporting depth (click maps, unsubscribe reasons, e-commerce revenue) exceeds what Mailchimp provides at equivalent plan tiers.

For teams that have migrated from Mailchimp to MailerLite, connecting both in Prooflytics for a transition period allows you to compare engagement quality across the migrated segment - useful for confirming that deliverability held through the list migration.

For B2B teams considering ActiveCampaign, ActiveCampaign provides deeper CRM-integrated sequence automation but at significantly higher cost. MailerLite is the right choice for email-first acquisition programs without deep CRM complexity.

Bottom line

• MailerLite's click map, e-commerce revenue, and unsubscribe reason data gives SMB marketers more diagnostic depth than most tools at this price point - connect it to your briefing to see that data daily.
• Revenue per email sent (when e-commerce is connected) is more actionable than open rate for understanding which campaigns drive business outcomes.
• API token authentication takes under 5 minutes; Advanced plan is required for automation analytics.
• For teams migrating from Mailchimp, connect both during the transition period to validate engagement quality across the migrated list.
• Book a walkthrough to see how MailerLite email data integrates with your paid acquisition reporting in Prooflytics.

You can read independent reviews of Prooflytics on G2 and compare it to other marketing analytics tools in the category.