There’s definitely a difference between spam and permission-based email marketing. Fertit is built specifically for legitimate newsletter subscriptions - subscribers opt-in through proper signup forms and can easily manage preferences or unsubscribe. It’s the same model used by every legitimate business newsletter, from GitHub updates to Substack publications. The focus is on providing value to people who actually want to receive the content.

Huh? How is it spam when I receive newsletters I sign up for?

Are you confused between newsletters/marketing and actual spam maybe?

Only to tech nerds. When it's B2B, and targeted and positioned properly, it's business

Of course, you can just say this as an edgy blanket statement and prescribe personal preferences to everyone in the world.

A lot of people actually want to be sold to.

What a silly comment.

With a knife, you can stab a person to death or you can cut onions to dinner.

Hey, thanks for feedback. While there are some screenshots in product hunt launch, I will definitely add more images and videos later to make it easier to use platform. https://www.producthunt.com/posts/fertit

Multi-tenancy is exactly what Fertit was built to solve. But it is available only in Fertit hoster service, not the open-source version at the current moment. Listmonk is excellent - we actually considered building on top of it initially. The main differentiators: Multi-tenancy (your pain point): Native support for multiple newsletters/domains in one instance Unified management across all your properties

Positioning differences: Listmonk: Power-user tool with SQL segmentation, advanced templating, high-throughput queues Fertit: Simplified interface targeting small businesses who want "just works" newsletter management

Architecture approach: Listmonk: Single binary + PostgreSQL (requires more ops knowledge) Fertit: Docker Compose setup with Redis for caching, designed for easier deployment

Business model: Open-source version addresses your self-hosting needs Hosted service ($5-10/month) for users who want zero ops

When you'd choose Fertit over Listmonk: You manage newsletters for multiple clients/domains (multi-tenancy) You prefer simpler UI over advanced segmentation features You want commercial support option You're hitting operational complexity with multiple Listmonk instances

When you'd stick with Listmonk: You need the advanced features (SQL queries, high-throughput queues) Current multi-instance setup works fine for your scale You prefer the mature, battle-tested codebase

Would love your thoughts on the multi-tenancy approach - is that the main friction point you're hitting with multiple instances?

Fertit actually leverages the best of both worlds through our SMTP integration approach:

Use Established ESPs for Delivery: Fertit connects to your existing SMTP provider (SendGrid, Mailgun, Amazon SES, etc.) - so you still get their deliverability infrastructure and IP reputation.

Save on Interface & Features: Instead of paying $50-300/month for ConvertKit or Mailchimp's full platform, you pay $5-10/month for Fertit's management layer while using a cheaper transactional email service for actual delivery.

Cost Comparison: Traditional ESP: $79/month for 5,000 subscribers Fertit approach: $9.99/month (Pro plan) + $15/month (SendGrid) = ~$25/month total

You can still pair with Sendgrid or SES, etc. It doesn't have to be THAT expensive. I think the hardest part is figuring out how you need to enter some of the DNS settings depending on where your DNS is provided and the UI/UX.

Aside: I really wish Google hadn't sold off domains.

Thanks for sharing your experience! You're spot on about BYOSMTP being a major hurdle. That's actually why we built Fertit as both a hosted service AND open-source. Users who want managed SMTP get the simplicity, while those with existing infrastructure can self-host. We've found the dual approach helps address different needs without forcing everyone down the same path. The spam challenge is real, and I'm curious how Sendune balances generous free tiers with spam prevention? Our pricing takes a different approach with smaller contact limits but lower entry costs, though I agree contact limits across the industry can feel arbitrary.

SMS is definitely on our radar! We're exploring AWS SNS integration first since it fits our "bring your own" model perfectly - users would connect their AWS account just like they do with SMTP. This keeps costs low while avoiding the complexity of direct carrier relationships.

If you're interested in SMS features, supporting us with a subscription would definitely help us prioritize and build this faster. Are you currently stuck with expensive SMS providers? Would love to understand your volume/use case to make sure we build something that actually solves your problem.

Great points, especially on deliverability - that's the biggest trade-off with BYOSMTP. You're right that managed providers have better reputation management, which is why our hosted service is positioned as the primary offering. The open-source version serves a different need: developers who want full control or have compliance requirements that prevent using third-party platforms.

On market positioning, I think there's still room between "build your own email system" and "pay $200+/month for enterprise features you don't need." Our target isn't competing with MailChimp for high-LTV businesses, but serving the gap where small businesses outgrow basic tools but aren't ready for enterprise pricing. That said, your "Mom test" concern is valid. We're validating this with real users to ensure we're not just building for ourselves.