Download center

Install the governed MMBS stable package.

The download center is part of the platform trust layer: one recommended stable build, visible checksum context, beta testing separation, and direct setup guidance.

Download MMBS Install Guide Release Center
Stable v2.0.1 Source-only extension package Beta testing-only
Release posture

Stable is the only production download path.

Stable is the recommended build for normal Gmail campaigns. Beta remains visible for governance, but direct beta ZIP distribution opens only after a distinct testing build exists.

RecommendedStable v2.0.1

Stable channel

Production MMBS package for Gmail mail merge, personalization, scheduling, preview, attachments, and reporting.

Release date
2026-05-16
Best for
Normal Gmail mail merge campaigns.
Status
Recommended production build.
Download MMBSView Stable Release
Testing onlyBeta testing

Beta channel

Testing channel listing kept for governance visibility. Direct beta ZIP distribution opens only after artifacts are separated from stable.

Release date
2026-05-16
Best for
Testing only, not normal campaigns.
Status
Testing-only. Use stable for production Gmail campaigns.
Testing onlyView Beta Policy
Package trust

Checksum visibility and source-only packaging stay close to the install path.

The public MMBS package contains Chrome extension source files only. VisaFlowX stable is available from the VisaFlowX utility page; beta artifacts stay unpublished until separately verified.

Stable v2.0.1 SHA-256 8C18D196434C42A43D946FFEF65B169A986D8BF739A174E56AFAF79E1DABC0AA

No executable payloads were found in the published MMBS ZIP package.

Quick install

Install MMBS, then open Gmail compose.

The setup path is written for normal users: download the recommended build, load it in Chrome, open Gmail, and connect when prompted.

1Download MMBS

Use the recommended stable package unless you are intentionally testing beta.

2Extract the package

Keep the folder location stable before loading in Chrome.

3Load unpacked

Open Chrome Extensions, enable Developer Mode, and choose the folder.

4Open Gmail

Connect Gmail and use the MMBS button beside Gmail Send.

Gmail onboarding

MMBS works from the Gmail compose workflow.

After installation, users write in Gmail, open the MMBS panel, import recipients, preview personalization, and send or schedule from the extension.

Gmail composeMMBS ready
To: CSV recipientsSubject: Personalized update

Write once in Gmail, then personalize per recipient with MMBS.

Help

Download questions, answered quickly.

Which version should I install?

Install Stable for normal Gmail outreach. Beta is optional and testing-only.

Where are release notes?

Use the Release Center for readable stable and beta summaries instead of raw technical files.