Mautic
85 · HealthyMarketing automation platform with campaigns, segments, landing pages and lead scoring.
Open source Email marketing
listmonk
83 · HealthyHigh-performance newsletter and mailing-list manager shipped as a single binary.
Postal
65 · StableMail delivery platform for sending transactional email from your own servers.
Keila
64 · StableNewsletter tool with a block editor, sign-up forms and campaign stats.
Dittofeed
61 · StableCustomer engagement platform for automated email, SMS and push journeys.
Mailtrain
15 · At riskSelf-hosted newsletter app built on Node.js.
Directory / Email marketing / Postal
Postal
Mail delivery platform for sending transactional email from your own servers.
Will it still be around?
Health 65/100 · Stable
Activity, bus factor and issue responsiveness. Breakdown
Alternative to
Savings proposal
At $20 a month (SendGrid Essentials, 100,000 emails), self-hosting Postal costs more: about $264 a month to run plus $1,200 to set up. It pays off once your SendGrid bill is above $264 a month, so enter your actual bill.
List price: SendGrid Essentials, 100,000 emails, billed monthly. Priced by email volume. Pro, with a dedicated IP, is $89.95. Source, checked 2026-10-07.
Extra cost over 3 years
$9,986
Pays for itself
Not at this size
Extra cost in year one
$4,129
Each month
$20 → $264
Show as a table
| Month | SendGrid | Self-hosted | Difference |
|---|---|---|---|
| Today | $0 | $1,200 | −$1,200 |
| Month 3 | $60 | $1,992 | −$1,932 |
| Month 6 | $120 | $2,784 | −$2,664 |
| Month 9 | $180 | $3,576 | −$3,396 |
| Month 12 | $239 | $4,368 | −$4,129 |
| Month 18 | $359 | $5,952 | −$5,593 |
| Month 24 | $479 | $7,536 | −$7,057 |
| Month 30 | $599 | $9,120 | −$8,522 |
| Month 36 | $718 | $10,704 | −$9,986 |
Assumptions you can change
Self-hosting Postal usually means an app server, a database and a cache or worker. Hours are for one engineer; the server cost is a typical cloud VPS with backups and grows with the number of people using it.
Not included: paid editions or features of Postal (see What's free?), large data migrations, and compliance work. All amounts in US dollars at list price; your negotiated price may differ.
Health score: 65/100
Activity45% weight
76/100
- Last commit 6 days ago (100/100).
- 18 commits in the past 12 months (56/100).
- 3 releases in the past 12 months (50/100).
Bus factor30% weight
27/100
- Top contributor wrote 80% of the last 15 commits (past 12 months).
- 3 people authored those commits.
Responsiveness25% weight
93/100
- 97% of all issues are closed (50 open, 1638 closed) (100/100).
- 21 of 24 recent issues got a reply or were closed (88/100).
Score v2. How the health score works.
License
MIT License · Open source (permissive)
OSI-approved license with few conditions beyond keeping the copyright notice.
Detected by GitHub as MIT.
What's free?
Enterprise features many open-core projects keep for paid plans.
| Feature | Self-hosted, free? |
|---|---|
| SSO (SAML) | Unknown |
| SSO (OIDC) | Unknown |
| SCIM provisioning | Unknown |
| Audit logs | Unknown |
| Role-based access control | Unknown |
| Multi-tenancy | Unknown |
We haven't verified which of these features are free for this project yet.
GitHub metrics
| Stars | 17k | Forks | 1.3k |
|---|---|---|---|
| Last commit | 6 days ago | Commits, 12 months | 18 |
| Releases, 12 months | 3 | Last release | 4 months ago |
| Contributors | 46 | Active authors | 3 in last 15 commits |
| Open issues | 50 | Closed issues | 1.6k |
Snapshot from 2026-10-08.