Inbucket News

Official release of Inbucket 3.1.0

2025-08-03T00:00:00+00:00

Inbucket 3.1.0 is out, containing many improvements from the 3.0.x series. The most significant new features are:

Lua scripting to support more complex configurations and integrations
The ability to reject mail based on the origin domain
Expanded TLS support for SMTP and POP3 services

More details can be found in the CHANGELOG

Binaries and Linux packages available on GitHub

Inbucket is also getting a real manual. It’s still a work in progress, but you can find it at book.inbucket.org.

Second beta release of Inbucket 3.1.0

2024-02-05T00:00:00+00:00

We’ve published v3.1.0-beta2, containing many improvements from the 3.0.x series. The most significant features in 3.1.x thus far:

Lua scripting to support more complex configurations and integrations
The ability to reject mail based on the origin domain
Expanded TLS support for SMTP and POP3 services

More details can be found in the CHANGELOG

Binaries and Linux packages available on GitHub

Official release of Inbucket 3.0.2

2022-07-04T00:00:00+00:00

Release 3.0.2 resolves build and packaging issues we ran into with previous 3.0 releases. The user experience should be the same as 3.0.1-rc2.

Changes from 3.0.1:

arm Docker builds now rely on amd64 frontend build stage
Frontend build migrated from npm+webpack to yarn+parcel, node 16

Binaries and Linux packages available on GitHub

What happened to 3.0?

2022-05-29T00:00:00+00:00

We released Inbucket 3.0.0 back in October 2021, but I forgot to write a post about it. Mea culpa.

There were some problems with the initial release, the RedHat and Debian packages were incomplete. I began work on a 3.0.1 release to resolve that and upgrade some of our dependencies, but some aspects of the front end build were not cooperating.

I’ve since migrated the front end to build with Yarn and Parcel, which simplifies things a great deal, and will hopefully reduce maintenance effort for myself. I feel this is too much of a change to keep the 3.0.1 label, so this will become 3.0.2. There will not be a final 3.0.1 release.

What does this mean for you? If you want a stable docker release, you should be OK to use 3.0.0. If you want a stable RedHat or Debian package, you should use 3.0.1-rc2.

What’s New:

Change highlights from 3.0.0-rc1 to 3.0.1-rc2:

Many bug fixes, build & test improvements
Support for SMTP AUTH LOGIN command
Dark mode support; follows OS setting
Reduced chance of click-jacking
Docker images also available on GitHub container registry
Docker image tags now use modern naming:
- stable has been renamed to latest
- latest (unstable) has been renamed to edge
- Version number tags are now available, ie 3.0.1-rc1
Docker images for arm7, arm64 (for Raspberry Pi, etc)

I also updated the screenshots on this site to reflect the 3.0 user interface.

Full Changelog

Release candidate for 3.0.0

2020-09-25T00:00:00+00:00

The first release candidate for Inbucket 3.0.0 is out!

What’s New:

The biggest change from the 2.x series is a brand new user interface that makes Inbucket feel much more like an application than a website.

Other significant changes include the ability include the domain in a mailbox name (see INBUCKET_MAILBOXNAMING), and a configurable URL base path (INBUCKET_WEB_BASEPATH) to aid in placing Inbucket behind an application proxy.

Full Changelog

Official release of Inbucket 2.1.0

2018-12-15T00:00:00+00:00

Inbucket 2.1.0 is official.

Changes from 2.0.0:

Added SMTP TLS support.
Added INBUCKET_WEB_PPROF configuration option for performance profiling.
Render UTF-8 addresses correctly in both REST API and Web UI.

Binaries and Linux packages available on GitHub

Official release of Inbucket 2.0.0

2018-05-05T00:00:00+00:00

Inbucket 2.0.0 is official.

Changes from rc1:

Corrected docs for INBUCKET_STORAGE_PARAMS.
Disabled color log output on Windows, doesn’t work there.
Added an online configurator to simplify creating a configuration suited to your needs.

Binaries and Linux packages available on GitHub

Release candidate for 2.0.0

2018-04-07T00:00:00+00:00

The first release candidate for Inbucket 2.0.0 is out!

What’s New:

A lot has changed, but a few of the highlights:

In-memory storage option, best for small installations and desktops. Will be used by default.
Message seen flag in REST and Web UI so you can see which messages have already been read.
Configurable support for identifying a mailbox by full email address instead of just the local part (username).

This release also includes changes to how Inbucket is configured, default ports in Docker, and the format of log output.

Full Changelog

Official release of Inbucket 1.3.1

2018-03-10T00:00:00+00:00

Inbucket 1.3.1 is available; changes since 1.2.0 include:

Added Button to purge mailbox contents from the UI.
Simple HTML/CSS sanitization; Safe HTML and Plain Text UI tabs.
Reverse message display sort order in the UI; now newest first.
Fixed a race condition during message receive.

Full Changelog

Official release of Inbucket 1.2.0

2017-12-27T00:00:00+00:00

Inbucket 1.2.0 is out. There are no significant changes from rc2, but I did setup a demo instance you can play with.

Full Changelog

Second release candidate for 1.2.0

2017-12-15T00:00:00+00:00

The second release candidate for Inbucket 1.2.0 is available!

What’s New:

rest/client types MessageHeader and Message with convenience methods; provides a more natural API
Powerful command line REST client
Allow use of latest as a message ID in REST calls
Fixed a crash bug in new monitor code

Full Changelog

Release candidate for 1.2.0

2017-01-29T00:00:00+00:00

The first release candidate for Inbucket 1.2.0 is out!

What’s New:

New Monitor tab lists incoming messages as they arrive
Increased local-part max-length for better Mailgun compatability
Use less file handles with large distribution lists

Full Changelog

Official release of Inbucket 1.1.0

2016-09-03T00:00:00+00:00

Inbucket 1.1.0 is official. Check out the screenshots or get your own copy via the Get It menu above.

Changes from rc2:

OS X Homebrew inbucket.conf and formula (see Homebrew Tap repository)
Log and continue when unable to delete oldest message during cap enforcement

Second release candidate for 1.1.0

2016-03-06T00:00:00+00:00

The second release candidate for Inbucket 1.1.0 is now available! Check out the screenshots or get your own copy via the Get It menu above.

Changes from rc1:

Added Message Cap to status page
Added search-while-you-type message list filter
Fixed shutdown hang in retention scanner
Inbucket now displays empty subjects as (No Subject)

Release candidate for 1.1.0

2016-03-04T00:00:00+00:00

The first release candidate for Inbucket 1.1.0 is out! Check out the screenshots or get your own copy via the Get It menu above.

What’s New:

Inbucket now builds with Go 1.5 or 1.6
Add new default theme based on Bootstrap (responsive!)
Your recently accessed mailboxes are listed in the GUI
HTML-only messages now get down-converted to plain text automatically
RESTful API moved to /api/v1 base URI

Over 1 million served

2014-06-06T00:00:00+00:00

I won’t claim it’s bullet-proof… But my production instance of Inbucket recently passed 1 million emails received. This particular install is running Inbucket 1.0rc4 and has been up for nearly 3 months:

New Website

2014-06-04T00:00:00+00:00

The new website for Inbucket is up! I’ve based it on Twitter Bootstrap 3.1, and have tried to take advantage of Bootstrap’s responsive features.

Run Inbucket with Docker

2014-05-26T00:00:00+00:00

Inbucket now includes a Dockerfile, which allows you to build a Docker image. I’ve setup a trusted build for Inbucket, so you don’t even have to build your own image. Try it out:

docker run -p 9000:10080 -p 2500:10025 jhillyerd/inbucket

Then point your browser at localhost:9000

Version 1.0 Released

2014-04-14T00:00:00+00:00

After four release candidates, it’s time to call Inbucket 1.0 ready! I’m not aware of any crash bugs and my production instance of rc4 has been running for over a month without any noticeable memory leaks.