Comparison

ListMailer vs. Sendy: Which "No-Subscriber-Tax" Tool is Right for You?

You've realized that paying Mailchimp $200/month just to store your contacts is a scam. You've narrowed it down to two budget-friendly champions: Sendy and ListMailer. One is a self-hosted powerhouse; the other is a streamlined "plug-and-play" bridge.

Here's the breakdown.

The Philosophy of "Own Your List"

Both tools solve the same problem: the absurd "subscriber tax" that traditional SaaS platforms charge.

The Problem: Paying for Storage

Mailchimp, ActiveCampaign, and ConvertKit charge based on your contact count. If you have 50,000 contacts, you're paying $300+/month — even if you only send one email.

That's like paying rent for a warehouse to store a spreadsheet.

Sendy's Approach: Complete Ownership via Self-Hosting

Sendy is a PHP/MySQL application you install on your own server. You own the code, the database, and the infrastructure. It connects to Amazon SES for sending, giving you $0.10 per 1,000 emails pricing.

The trade-off: You're responsible for server security, updates, and troubleshooting.

ListMailer's Approach: Complete Simplicity via Your Own Inbox/SMTP

ListMailer is a cloud-based tool that connects to your SMTP provider — Gmail, Outlook, Amazon SES, Mailjet, or any SMTP relay. You upload a CSV, map variables, and send.

The trade-off: You pay a yearly subscription ($49-$99), but you get zero maintenance and multi-provider flexibility.

Head-to-Head Comparison

When to Choose Sendy

Sendy is the right choice if you're comfortable with server management and need maximum control.

High Volume: 1M+ Emails a Month

If you're sending millions of emails, Sendy's $1 per 10,000 emails (via Amazon SES) is unbeatable. For 1M emails, you're paying ~$100/month in sending costs — far cheaper than any SaaS platform.

Feature Rich: Autoresponders and White-Labeling

Sendy includes autoresponder sequences and white-labeling for agencies managing multiple clients. If you need drip campaigns and client portals, Sendy has you covered.

The Catch: Server Complexity

Here's the reality check: Sendy requires you to:

• Set up a Linux server (DigitalOcean, AWS EC2, etc.).
• Install PHP, MySQL, and configure Apache/Nginx.
• Handle SSL certificates, cron jobs, and security patches.
• Troubleshoot when something breaks (and it will).

If you don't know what a "PHP version" is, Sendy might be a headache.

When ListMailer Wins (The ListMailer Edge)

ListMailer is designed for a different use case: fast, personal, plain-text outreach that lands in the Primary Tab.

The "Human" Touch: Primary Tab, Not Promotions

Sendy is built for HTML newsletters. ListMailer is built for plain-text-ish emails that look like they came from a real person.

This is critical for cold outreach, sales emails, and partnership pitches. Heavy HTML templates often get filtered into the Promotions tab. Plain-text emails land in Primary — where people actually read them.

Multi-Provider Freedom: Gmail, Outlook, SES in One Click

Sendy is heavily tied to Amazon SES. ListMailer lets you toggle between:

• Gmail/Google Workspace: Perfect for small batches (500/day limit).
• Microsoft 365/Outlook: Great for corporate domains.
• Amazon SES: For high-volume, low-cost sending.
• Mailjet, SendGrid, or any SMTP relay: Mix and match as needed.

This is where SMTP Rotation becomes powerful. You can distribute your campaign across multiple providers to stay under daily limits and protect your sender reputation.

Zero Maintenance: No Server, No Updates, No Headaches

ListMailer is cloud-based. You log in, upload a CSV, and send. No server to manage. No PHP updates. No MySQL backups.

This is the trade-off: You pay a yearly subscription, but you get your time back.

Global Blacklist: Persistent Opt-Out Across All Imports

Here's a silent failure that burns sender reputation: re-importing unsubscribes.

You export your CRM, import it into your email tool, and accidentally re-mail someone who opted out months ago. They hit "Report Spam," and your domain reputation tanks.

ListMailer's Global Opt-out (Global Blacklist) prevents this. Once someone unsubscribes, they're blacklisted across all future CSV imports — even if they show up in your CRM again.

Sendy has list-level unsubscribes, but they don't persist across re-imports unless you manually manage them.

Pricing Breakdown: The Real Cost

Let's do the math for a small business sending 50,000 emails/month.

Sendy Total Cost

• Sendy License: $69 (one-time)
• Server: $10-20/month (DigitalOcean, Vultr, etc.)
• Amazon SES: $5/month (50k emails @ $0.10 per 1k)
• Year 1 Total: $69 + $180 (server) + $60 (SES) = $309
• Year 2+ Total: $240/year (server + SES)

ListMailer Total Cost

• ListMailer Subscription: $49-99/year (flat)
• SMTP Sending: $0-5/month (if using Gmail/Outlook, it's free; if using SES, $5/month)
• Year 1 Total: $99 + $60 (SES) = $159
• Year 2+ Total: $159/year

For most small businesses, ListMailer is cheaper — and you don't have to manage a server.

Technical Comparison: SMTP Rotation vs. SES-Only

Sendy is optimized for Amazon SES. You can technically use other SMTP providers, but it's not designed for multi-provider rotation.

ListMailer's SMTP Rotation lets you add multiple SMTP connections and automatically distribute emails across them.

Example: Staying Under Gmail's 500/Day Limit

Let's say you want to send 2,000 emails using Google Workspace accounts (to avoid "sent via" tags).

With ListMailer, you can:

• Add 4 Gmail accounts (each with a 500/day limit).
• Enable SMTP Rotation.
• ListMailer distributes the 2,000 emails across all 4 accounts (500 each).

This keeps you under provider limits and protects your sender reputation.

Sendy doesn't have this built-in. You'd need to manually manage multiple campaigns or write custom scripts.

Personalization: CSV Variables vs. Merge Tags

Both tools support dynamic personalization, but the workflow differs.

Sendy: Merge Tags

Sendy uses merge tags like [Name] and [Company]. You import a CSV with predefined columns, and Sendy maps them.

ListMailer: Payload/Variables

ListMailer uses your CSV headers as dynamic placeholders. Any column in your CSV becomes a variable.

Example CSV

email,first_name,company,pain_point,event_city
jane@acme.com,Jane,Acme,manual invoicing,Berlin
sam@north.io,Sam,North,lead tracking,London

Example Email Template

Subject: Quick question about 

Hey ,

Saw you're dealing with  — we built a tool that automates this for teams like .

I'll be in  next week. Worth a quick coffee?

— Henrik

This is "Dynamic Personalization 2.0" — beyond just the first name tag. You can map any CSV column to create hyper-relevant 1:1 style messages at scale.

Use Case Breakdown: Who Should Choose What?

Choose Sendy If:

• You're sending 1M+ emails/month and need the lowest per-email cost.
• You're comfortable managing a Linux server and troubleshooting PHP/MySQL.
• You need autoresponder sequences and white-labeling for clients.
• You're primarily sending HTML newsletters (not plain-text outreach).

Choose ListMailer If:

• You want zero maintenance and a 60-second setup.
• You're sending plain-text-ish emails for cold outreach, sales, or partnerships.
• You need multi-provider flexibility (Gmail, Outlook, SES, Mailjet).
• You want SMTP Rotation to stay under provider limits.
• You need a Global Blacklist to prevent re-mailing unsubscribes.

The "Sent Via" Problem: Why ListMailer Wins for Outreach

Here's a subtle but critical difference: "sent via" tags.

When you send emails through a third-party service (like Sendy via SES), Gmail often adds a "sent via amazonses.com" tag below your name. This signals to recipients that the email came from a bulk tool, not a personal inbox.

ListMailer avoids this by letting you send directly through your own Gmail or Outlook account. The email looks like it came from you — because it did.

This is why ListMailer is better for cold outreach and sales emails. Sendy is better for newsletters where the "sent via" tag doesn't matter.

Deliverability: Inbox Placement Strategies

Both tools can achieve high inbox placement, but the strategies differ.

Sendy: HTML Newsletters + SES Authentication

Sendy relies on Amazon SES's infrastructure for authentication (DKIM, SPF). If you configure your DNS correctly, deliverability is solid.

However, HTML newsletters often get filtered into the Promotions tab — especially if they include images, buttons, or heavy formatting.

ListMailer: Plain-Text + Personal SMTPs

ListMailer encourages plain-text-ish emails sent through personal SMTP accounts (Gmail, Outlook). This mimics 1:1 communication, which improves inbox placement.

Combine this with SMTP Rotation and the Global Blacklist, and you get:

• Higher inbox placement (Primary Tab, not Promotions).
• Lower complaint rates (no re-mailing unsubscribes).
• Better sender reputation (distributed load via rotation).

Integration with n8n and Make (Automation Workflows)

If you're using n8n or Make (formerly Integromat) for automation, both tools can integrate — but ListMailer is easier.

Sendy: API-Based Integration

Sendy has an API for subscribing contacts and triggering campaigns. You can connect it to n8n/Make, but you'll need to handle authentication and error handling.

ListMailer: SMTP-Based Integration

ListMailer uses standard SMTP, which means any automation tool can send emails through it. You can:

• Trigger emails from n8n workflows (e.g., new lead in CRM → send personalized email).
• Use Make to pull data from Airtable/Google Sheets and send via ListMailer's SMTP.

This is the "no-code" advantage: ListMailer works with any tool that supports SMTP.

Conclusion

Both Sendy and ListMailer eliminate the "subscriber tax." The question is: Do you want control or convenience?

Choose Sendy if you're a developer sending millions of emails and need the absolute lowest cost per send. You'll save money long-term, but you'll pay in time and server management.

Choose ListMailer if you're a creator, agency, or small business that values simplicity. You get multi-provider flexibility, SMTP rotation, and zero maintenance — all for less than $100/year.

For most indie hackers and growth teams, ListMailer is the better choice. It's faster to set up, easier to scale, and designed for the kind of plain-text outreach that actually lands in the inbox.