What is the main difference between Hyvor Relay and Postal?

Hyvor Relay and Postal are both email platforms but differ in their approach, features, and target audience. Compare their GitHub stats, technology stack, and community adoption to make the best choice.

Which is better: Hyvor Relay or Postal?

The choice between Hyvor Relay and Postal depends on your specific needs, technical requirements, and team preferences. Both are quality open source solutions with active communities.

Can I migrate from Hyvor Relay to Postal?

Migration between Hyvor Relay and Postal is possible but requires careful planning. Consider data export/import capabilities, feature parity, and potential workflow changes.

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Hyvor Relay vs Postal

Learn how Hyvor Relay and Postal differ in their key features, development activity, technology stack and community adoption, so you can decide which of these email platforms is best for you.

Hyvor Relay

Self-hosted email API alternative to AWS SES & Mailgun. Open-source AGPL-3.0 with enterprise features, automated deliverability, and cloud version coming 2026.

Visit Hyvor Relay Read more

918stars+9(+1%)

Last 30 days

Last commit
2 days ago
Repository age
1 year
Version
0.0.48
License
AGPL-3.0
Self-hosted
Yes
Repository
hyvor/relay

Postal

Run your own mail delivery infrastructure with a web interface, webhooks, IP pools, and spam filtering integrations for inbound and outbound email.

Visit Postal Read more

16,906stars+31(+0.2%)

Last 30 days

Last commit
1 day ago
Repository age
10 years
Version
3.3.7
License
MIT
Self-hosted
Yes
Repository
postalserver/postal

Detailed Comparison

Postal appears to have several advantages over Hyvor Relay, particularly in popularity, maturity and licensing. Consider your specific needs regarding popularity, growth, activity, technology, maturity, licensing and features when making your decision.

Postal wins

Community & Popularity

Postal significantly outpaces Hyvor Relay in community adoption with 16,906 stars compared to 918 stars on GitHub. This 18.4x difference suggests Postal has a much larger and more active community. In terms of developer contributions, Postal has 1,318 forks, indicating strong developer engagement.

Hyvor Relay wins

Growth Momentum

Hyvor Relay is growing faster, adding 9 stars in the last 30 days (+1%) against adding 31 stars for Postal (+0.2%). Hyvor Relay is the smaller project of the two, so it is closing the gap rather than extending a lead.

Comparable

Development Activity

Both projects show recent activity, with Hyvor Relay last updated 2 days ago and Postal 1 day ago.

Comparable

Technology Stack

Both tools share common technology foundations, being built with JavaScript, Bash. However, they differ in their additional technology choices: Hyvor Relay uses CSS, Typescript, Golang, PHP, SvelteKit while Postal leverages SCSS, Ruby, CoffeeScript.

Postal wins

Project Maturity

Postal has been in development longer, starting 10 years ago, compared to Hyvor Relay which began 1 year ago. This 8.2-year head start suggests Postal may have more mature features and established processes.

Postal wins

Licensing

Postal uses the MIT license, which is more permissive than Hyvor Relay's AGPL-3.0 license, potentially offering greater flexibility for commercial use and integration.

Comparable