Head-to-Head Comparison · Alternative to MailerSend · 📬 email
MailerSend vs Postal
Run your own mail delivery infrastructure with a web interface, webhooks, IP pools, and spam filtering integrations for inbound and outbound email. Here is how Postal ($0/mo open source) stacks up against MailerSend ($15/mo) across cost, hosting, data privacy, and real-world trade-offs.
Postal is a verified Open Source-licensed open-source replacement for MailerSend. Switching from MailerSend ($15/mo) saves $180/yr per solo seat, or $900/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed MailerSend.
Postal
$0.00/mo · Open Source
MailerSend vs Postal Specifications
facts verified 2026-11-07
| Dimension | MailerSend (Paid) | Postal (Replacement) |
|---|---|---|
| Monthly Price | $15 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $180 / yr | $0 / yr (Save $180) |
| 1-Year Cost (5 seats) | $900 / yr | $0 / yr (Save $900) |
| 1-Year Cost (10 seats) | $1,800 / yr | $0 / yr (Save $1,800) |
| Source & License | Proprietary SaaS | open source Open Source |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 16.9k (active nov 2026) |
Deep Dive: Switching from MailerSend to Postal
Trade-offs, installation & data architecture
What you trade away
Requires self-hosting setup, updates, and server maintenance compared to managed MailerSend.
How to deploy Postal
Clone https://github.com/postalserver/postal or deploy with Docker Compose
What it takes to run
Deploy via Docker or binary release from GitHub and configure environment variables.
Where your data lives
All application data and configuration live on your own server or local database.
Why fork Postal instead of vibe-coding a MailerSend clone?
Instead of paying recurring SaaS fees for MailerSend or rebuilding it from scratch, deploy one of the 6 battle-tested open-source alternatives like Postal.
MailerSend vs Postal FAQ
Is Postal a good free alternative to MailerSend?+
Yes. Postal is a verified open-source (Open Source) replacement for MailerSend. Run your own mail delivery infrastructure with a web interface, webhooks, IP pools, and spam filtering integrations for inbound and outbound email.
What is the catch when switching from MailerSend to Postal?+
Requires self-hosting setup, updates, and server maintenance compared to managed MailerSend.
How much do you save switching from MailerSend to Postal?+
MailerSend costs $15/mo ($180/yr) per seat, whereas Postal is $0/mo. Switching saves $180/yr for a solo user, $900/yr for a 5-person team, and $1,800/yr for a 10-person team.
How do I install or self-host Postal instead of MailerSend?+
Install: Clone https://github.com/postalserver/postal or deploy with Docker Compose. Setup: Deploy via Docker or binary release from GitHub and configure environment variables.
