Spent the last month building Fertit - basically a newsletter manager but you bring your own SMTP and skip the DevOps nightmare. All the features (subscriber management, admin dashboard, custom preferences) without the infrastructure markup.
The math that broke me:
Mailchimp: $230/month for 15k contacts
My solution: $10/month infrastructure + $10 SendGrid = unlimited
What I learned: The "enterprise" features are mostly database operations with SMTP APIs. But the 3 weeks of Go/PostgreSQL/Redis setup explains why people just pay ConvertKit $300/month.
Here's the thing: Even open-sourcing it, I realized most people don't want to deal with servers, Docker configs, and database migrations. So I built an affordable hosted service starting at $5/month. More features and security measurements, zero setup - just bring your SMTP and start sending. You get all the cost savings without any of the self-hosting headaches.
Now testing this hosted version at $5/month - middle ground between DIY pain and SaaS pricing.
Hosted version: https://www.fertit.com
Open source: https://github.com/rasadov/NewsletterManager
Anyone else tired of choosing between expensive self-hosting and expensive SaaS? Would love feedback on the approach.
One thing I don’t particularly like about listmonk is that it doesn’t really support multitenancy. It’s lightweight enough that I can spin up multiple instances for different domains, but it’d be nice not to.
https://listmonk.app/
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