# Self-Hosted and Owned Email Marketing Platforms in 2026: A Buyer's Guide > Last verified: 2026-08-07. Pricing sourced from vendor pages and emailtooltester.com; confidence and dates noted per entry. Source: https://saascode.ai/inside/self-hosted-and-owned-email-marketing-platforms-in-2026-a-buyer-s-guid · Published: 2026-08-29 · Section: listicle · Product: Sendora (https://saascode.ai/products/sendora) --- *Last verified: 2026-08-07. Pricing sourced from vendor pages and emailtooltester.com; confidence and dates noted per entry.* **What this guide covers.** Platforms for two different jobs: sending email for your own business, and *running* an email marketing platform for other people's businesses. Most of the list is products you rent or self-host for your own sending. One entry — **Sendora** — is a codebase you buy once and deploy as a multi-tenant SaaS under your own brand, where each client is a tenant and you set what they pay. Where a rented tool is the better answer, this guide says so. --- Before any feature comparison, this category imposes a constraint that pricing tables do not mention: your sender reputation determines whether your email arrives. Choose a tool that handles sending identity poorly for your situation and deliverability becomes a structural problem — one that no added feature can fix after the fact. Three questions shape that reputation. **Shared versus owned sending infrastructure.** On a rented platform you send in the platform's shared lanes alongside thousands of other accounts. On a self-hosted setup you send from infrastructure you operate. The relevant question is not which arrangement is better in the abstract, but which matches what you are actually trying to run. **Per-tenant isolation.** If you intend to run email marketing for multiple clients — each with their own sender domain, their own contacts, and their own compliance obligations — does a high bounce rate or spam complaint on one client's account hold only that account, or does it affect everyone on the platform? **Reputation portability.** When you move platforms, your subscriber list moves with you. Your sending history generally does not. This guide organizes eight tools by how they answer those three questions, then by cost and feature coverage. The first question divides the list cleanly: tools built for a single operator sending their own lists, and tools built for an operator who intends to run email marketing as a service for multiple clients. Knowing which side you are on before reading a pricing table is the first useful decision in this category. --- ## Buying criteria **1. Single sender or platform operator?** The category splits here and most comparisons miss it. If you send your own newsletter and never intend to sell email marketing as a service, the single-tenant options — both rented and self-hosted — are the relevant half of the list. If you want to run email marketing for multiple independent clients, you need multi-tenancy with per-tenant isolation, a customer-facing signup and billing layer, and the ability to set your own plan structure. That is a different set of tools, and only one tool in this list covers it natively. **2. How does each client's reputation sit relative to the others?** On a shared rented platform, clients send from shared infrastructure and inherit the platform's aggregate reputation. On a multi-tenant self-hosted deployment, whether per-tenant suppression, bounce tracking, and account holds are scoped at the tenant level determines whether one client's spam problem becomes everyone's. **3. What billing structure do your clients inherit?** On a rented platform, your clients inherit the billing axis the platform chose. On a platform you own, you configure that structure — per-send, per-contact, flat monthly, or a custom combination. This question only matters if you have clients; for a single sender it makes no difference. **4. License obligations.** AGPL-3.0 — the license used by listmonk, Keila, and Mautic — requires source disclosure when you run modified software as a network service. If you modify the code and host it as a service for customers, that obligation is not theoretical. A commercial license does not carry this requirement. **5. Operational complexity.** A single Go binary against Postgres and a multi-service Next.js + Supabase + queue deployment have different operational footprints. Neither is wrong; they address different scales and different intents. Know which one your team can maintain before choosing. --- ## The tools ### Rented platforms — shared sending infrastructure These platforms get you started quickly, absorb deliverability maintenance on your behalf, and bill you per seat. You send in their lanes. You do not own the infrastructure, the billing axis, or the platform code. --- #### Mailchimp The most recognizable name in email marketing. Campaigns, automations, A/B testing, a landing page and website builder, and more native integrations than any other tool on this list. Approximately $135/month on the Standard plan at 10,000 contacts (emailtooltester.com/en/reviews/mailchimp/pricing/, updated 2026-08-05; JS-rendered vendor table — MEDIUM confidence on the price). Per-contact billing on most plans, including — on some plan structures — contacts who have unsubscribed and never received a campaign from the current account (per emailtooltester, 2026-08-05). *What Mailchimp does that Sendora does not:* Landing page builder, website builder, A/B testing automation, ecommerce integrations, and the widest catalog of native app connections. If your clients need those surfaces alongside campaigns, Mailchimp covers them in one platform; Sendora does not. --- #### Brevo The cheapest option in the category for infrequent sends on a large list. Brevo bills per send, not per subscriber — and from the 20,000-email tier upward, contacts are unlimited (brevo.com/pricing, retrieved 2026-08-07; the plan-description axis was machine-readable; numeric table was not). At 40,000 emails per month: approximately $29–$39 on Starter (sources conflict at this tier — emailtooltester, 2026-03-10, emailtooltester.com/en/reviews/brevo/pricing/ vs. several undated aggregators; publish the range, never a single number). *What Brevo does that Sendora does not:* SMS and WhatsApp campaigns, plus deliverability infrastructure carrying a sender reputation built over years — the asset a new platform earns rather than installs. For someone mailing their own large list at low frequency, Brevo is the cheapest option on this page and the right one. --- #### Kit (formerly ConvertKit) Creator-focused, and the most generous free tier in this category: 10,000 subscribers and unlimited sends at $0, with no time limit on the free plan (confirmed on kit.com/pricing; verified via emailtooltester, 2026-01-19). At 10,000 subscribers on Creator paid: approximately $139/month at the monthly rate — annual billing is lower (emailtooltester.com/en/reviews/convertkit/pricing/, updated 2026-01-19; MEDIUM confidence on the price). Includes landing pages, digital product selling, a visual automation builder, and tools for creator monetization. *What Kit does that Sendora does not:* A free tier covering 10,000 subscribers with unlimited sends, plus a landing page builder, digital product selling, and a visual automation builder. A creator mailing their own 10,000-person list has a genuinely free, well-maintained option at Kit, and should take it. That is a different purchase from this one: Kit is the business, and what follows is how you run one. --- #### MailerLite The value option among rented per-subscriber tools. Approximately $89/month on Comfort and $129/month on Power for 10,000 subscribers (emailtooltester.com/en/reviews/mailerlite/pricing/, updated 2026-07-01; MEDIUM confidence). The Power plan includes unlimited sends per month (confirmed on mailerlite.com/pricing). Includes a website builder, digital product selling, and paid newsletter subscriptions. *What MailerLite does that Sendora does not:* Digital product selling, paid newsletter subscriptions via the platform, website builder, and a lower monthly cost than Mailchimp for the same list size on a rented plan. Unlimited sends on Power removes the send-cap concern for most operators. --- ### Self-hosted, single-operator These tools run on infrastructure you control and send through an ESP you connect. They are built for one operator sending their own lists — not for selling email marketing as a service to multiple independent clients. --- #### listmonk Free, open-source (AGPL-3.0), and the most mature self-hosted newsletter tool in this list. v6.2.0 released 2026-06-26; 22,600+ GitHub stars; active multi-contributor development (github.com/knadh/listmonk; github.com/knadh/listmonk/releases). A single Go binary against Postgres. Campaigns, subscriber management, bounce and complaint handling, template library, and sending through your own SMTP, SES, or compatible provider. More production history at raw sending scale than any newer tool in this category. *What listmonk does that Sendora does not:* Simpler deployment than any other option here — one binary, one database, no Node host, no Supabase project, no queue service required. Zero licensing cost. More production history at scale. If the goal is to self-host your own list and send your own campaigns, listmonk gets you there faster and cheaper. *What matters for platform operators:* listmonk is single-tenant by design. One installation serves one operator's lists. There are no organizations, no per-tenant billing, no plan management, and no customer-facing signup. Running it as a SaaS for multiple independent clients requires building the entire SaaS layer on top of listmonk's sending infrastructure — org management, billing, per-tenant isolation, auth. AGPL-3.0 also requires source disclosure when you modify and host the software as a network service for customers. --- #### Keila Free, open-source (AGPL-3.0), Elixir stack. v0.30.2 released 2026-06-26; 2,200+ GitHub stars; active development (github.com/pentacent/keila). Native integrations with SES, Sendgrid, Mailgun, Postmark, and SMTP out of the box. Functional scope is similar to listmonk; the community and ecosystem are smaller. *What Keila does that Sendora does not:* Free, open-source, simpler to operate than Sendora, and native support for multiple ESPs without a swappable adapter layer. For a technically capable operator who wants maintained open-source email with multi-ESP choice, it is a credible alternative to listmonk. *What it does not do:* Single-tenant, no SaaS layer, no multi-tenancy. Smaller community than listmonk — fewer production references and a narrower support ecosystem. --- ### Self-hosted marketing automation — a different product class --- #### Mautic Free, open-source (AGPL-3.0), PHP/Symfony. v7.1.3 released 2026-07-07; 10,100+ GitHub stars; very active development (github.com/mautic/mautic). A full marketing automation suite: lead scoring, CRM pipeline, multi-channel campaign orchestration (email, SMS with integrations, social), landing pages, forms, A/B testing, and a visual builder for complex multi-step workflows. This is a meaningfully different product class from the email-focused tools above. *What Mautic does that Sendora does not:* Lead scoring, CRM pipeline, multi-channel campaigns, landing pages — the full marketing automation suite. If the requirement is sophisticated demand generation for your own organization rather than email marketing infrastructure for end subscribers, Mautic covers territory Sendora deliberately does not. *What Mautic does not do:* Multi-tenancy is weak — Mautic is not built for reselling marketing automation to multiple independent clients as a platform. Operational complexity is high: PHP/Symfony stack, multiple services, significant configuration overhead. Free to run; costs come from server infrastructure and maintenance time. --- ### Self-hosted with multi-tenant SaaS layer --- #### Sendora $249, one-time purchase. A complete multi-tenant email marketing platform — campaigns with a drag-and-drop builder, drip sequences triggered by form submission or list join, subscriber management with consent and suppression tracking, embeddable double opt-in forms, per-tenant sending domains, a durable send queue, and click-primary analytics — shipped as a Next.js + Supabase codebase you own and deploy on your own infrastructure. Each client on your deployment is a separate tenant with their own organization, their own contacts, their own verified sending domain, and their own plan limits. Bounce monitoring, spam complaint tracking, and automated account holds are scoped at the tenant level. One client's deliverability problem does not propagate to other tenants. Your admin panel gives you cross-tenant oversight: deliverability status by organization, usage monitoring, and account hold controls you configure. **Billing-axis control.** Plan limits live in a JSONB column in your database, editable from your admin panel with no deploy required. Per-send, per-contact, flat monthly, or a custom combination: the axis is yours to define and revise as your market develops. No rented platform sells this control because every incumbent's upsell path depends on you not having it. **Sending cost structure.** The campaign engine connects to Mailgun — or your preferred provider through the swappable adapter — at wholesale rates. Your clients' sending costs you what you negotiated with your ESP; the price you charge clients is a number you set independently. **Honest scope — what Sendora is not, stated plainly:** - No SMS, WhatsApp, or push notifications. Email-only by design, and the design is deliberate. - No landing page or website builder. - No ecommerce product feeds or purchase-triggered revenue attribution. Klaviyo does this natively; Sendora does not. - No full marketing automation suite. Mautic covers that territory; Sendora does not. - Kit's free plan covers 10,000 subscribers with unlimited sends at $0. A creator mailing their own 10,000-person list has a genuinely free option there, and this page is not trying to win that reader. - Brevo is cheaper for pure per-send billing at comparable volumes, with deliverability infrastructure included. - More complex to deploy than listmonk or Keila: requires a Next.js host, a Supabase project, an ESP account, and an Upstash account for the queue. The operational footprint is larger. - Click-primary analytics: open rates are tracked and labeled as unreliable (Apple Mail Privacy Protection inflates reported opens materially; most platforms still headline them). If your clients expect open rate as the headline engagement metric, this requires a conversation before onboarding. - Roadmap vs. v1.0: a cross-campaign metrics hub is planned for v1.1 and is not in the shipped v1.0. Per-tenant ESP subaccount isolation as a dedicated deliverability option is on the roadmap and is not shipped in v1.0. Neither should be presented to clients as available today. [Try the demo →](https://sendora.saascode.ai) Best for: operators who want to run and resell email marketing to multiple independent clients, need per-tenant deliverability isolation, want control over the billing axis and plan structure, and want the codebase to be theirs outright. The only tool on this list that covers all three without requiring you to build the SaaS layer yourself. --- ## How to choose | If your goal is... | The right tool | |---|---| | Send your own newsletter, up to 10,000 subscribers, free | **Kit** — the free tier is the strongest offer at this list size | | Infrequent campaigns to a large list, lowest rented cost | **Brevo** — cheapest at the 40,000-send/month tier | | Self-host your own newsletter, single sender, zero cost | **listmonk** (larger community) or **Keila** (native multi-ESP support) | | A well-known name with no infrastructure to manage | **Mailchimp** or **MailerLite** — rented, simplest setup | | Full marketing automation for your own organization | **Mautic** — lead scoring, CRM, multi-channel | | Ecommerce-native attribution and SMS campaigns | **Klaviyo** — outside this list; mentioned for boundary | | Run email marketing as a service for multiple clients | **Sendora** — only tool on this list with multi-tenancy built in | | Own the billing axis, own the codebase | **Sendora** | --- ## The verdict Sendora wins in one scenario with no credible competition from any other tool on this list: you want to run email marketing as a service for multiple independent clients, you need per-tenant reputation isolation, you want control over the billing axis and plan structure, and you want the codebase to be yours. No rented platform gives you the third. listmonk, Keila, and Mautic do not give you the second. Sendora does all three. The tradeoffs are real. It is more complex to operate than listmonk, it does not include SMS, and it hands you infrastructure a rented platform would run on your behalf — including the deliverability reputation an incumbent has already spent years building. It is also the wrong purchase for anyone whose job is sending their own mail: Kit and Brevo serve that person well, and this is not a cheaper way to do what they do. Buy it when the multi-tenant platform is the product you need, not as a substitute for a simpler tool that already fits better. --- ## FAQ ### Q: What is the best self-hosted email marketing platform in 2026? The answer depends on what you are running. For a single sender: listmonk (free, AGPL-3.0, v6.2.0, 2026-06-26, github.com/knadh/listmonk) is the most mature self-hosted option. Keila (free, AGPL-3.0, v0.30.2, 2026-06-26, github.com/pentacent/keila) is an active alternative with native multi-ESP support. For an operator selling email marketing to clients — per-tenant isolation, billing, plan management — Sendora is the only self-hosted option that ships that layer without requiring you to build it. --- ### Q: Can I use listmonk to sell email marketing to my own clients? Not without building the entire SaaS layer yourself. listmonk is single-tenant by design: one installation, one operator's lists, no organizations, no per-tenant billing, no customer-facing signup. listmonk is also AGPL-3.0 — modify it and host it for customers, and you are required to provide them with the source code of your modifications. --- ### Q: What does AGPL-3.0 require if I run modified software as a SaaS? AGPL-3.0 requires that if you modify software and run it as a network service — including anyone who accesses it over the internet — you must make your source modifications available to those users. If you modify listmonk, Keila, or Mautic and host it for customers, you must provide them your modifications under AGPL-3.0. A commercial license like Sendora's does not carry this requirement. --- ### Q: Which email marketing platforms charge per send instead of per subscriber? As of 2026, Brevo (formerly Sendinblue) is the primary rented platform built around per-send billing. Its plans are structured by emails per month, with unlimited contacts from the 20,000-email tier upward (brevo.com/pricing, retrieved 2026-08-07; emailtooltester.com/en/reviews/brevo/pricing/, updated 2026-03-10). Mailchimp also offers a pay-as-you-go per-send option on some accounts, though its main plans are per-contact (emailtooltester.com/en/reviews/mailchimp/pricing/, 2026-08-05 — MEDIUM confidence; could not confirm on a Mailchimp-owned page directly). Per-send billing is cheaper for infrequent sends on a large list; per-subscriber unlimited-sends plans such as Kit and MailerLite are cheaper for daily sends. --- ### Q: What is the best free email marketing option for a creator with 10,000 subscribers? Kit (formerly ConvertKit) offers 10,000 subscribers and unlimited sends on its free tier with no stated time limit (kit.com/pricing; emailtooltester.com, updated 2026-01-19) — the strongest free offer in this category. listmonk and Keila are free with no list-size ceiling but require self-hosting and your own ESP; for a creator without server infrastructure, Kit is the simpler path. --- ### Q: Is there a Mailchimp alternative that keeps subscriber data on my own servers? Yes. listmonk, Keila, and Sendora all run on infrastructure you control. listmonk (free, AGPL-3.0) and Keila (free, AGPL-3.0) are single-tenant tools built for one operator's own lists; subscriber data stays in your Postgres database on your server. Sendora ($249, commercial license) is a multi-tenant platform for operators who want to sell email marketing to multiple clients; subscriber data stays in your Supabase project, which you own and pay for independently. None of them provide deliverability infrastructure in the way that Mailchimp, Brevo, or MailerLite do — you own the sending relationship and the reputation management. --- ### Q: How do I stop one customer's spam from ruining deliverability for everyone on my email platform? Per-tenant isolation at three layers: sending domain, suppression, and account holds. Each client should verify and send from their own domain — a reputation issue stays scoped to that tenant's domain, not your whole platform. Complaint and bounce rates tracked per account (common thresholds: 0.1% warning, 0.3% automatic hold) let you pause one tenant without affecting others. Suppression lists per-organization keep one client's unsubscribes from blocking another's sends. Sendora ships all three layers with configurable automated holds. Single-tenant tools like listmonk and Keila have no multi-client scenario; rented platforms handle this on the platform's behalf. ## Related reading - [Sendora vs listmonk, vs Brevo, vs building it yourself](https://saascode.ai/inside/sendora-vs-listmonk-vs-brevo-vs-building-it-yourself.md) - [Road to Sendora](https://saascode.ai/inside/road-to-sendora.md)