Mail Diamond sends your campaigns from your own email accounts — smart pacing, provider rotation, and bounce hygiene keep your sender reputation clean and your mail landing in the primary tab. All your data stays on your computer.
Campaigns, follow-ups and multiple accounts in one calm window.
Your mail, contacts and passwords never leave your computer.
Contacts, tasks, scheduled sends, meeting requests, color-coded flags.
Five themes, custom colors, draggable panels, five text sizes.
Stripe-hosted checkout — cards and Apple Pay. One minute.
Your serial and download link land in your inbox automatically, within minutes.
Install Mail Diamond, paste your serial, done. Your license lives on your computer — we never lock you out.
Download the full program below. Install it, then activate with the serial from your purchase email. The app is the complete product — nothing is locked except activation.
Download Mail Diamond Installer ships with your first release build
From the developer, not a ticket queue. Email market@constructionoffers.ca — average reply: same day.
Mail Diamond is developed in Toronto by Tec Diamond Inc. It exists because campaign tools either lived in the cloud (renting your data back to you) or treated follow-ups as an afterthought. Mail Diamond keeps everything on your machine and treats the follow-up as the main event.
Your license lives on your computer — we never lock you out. Email market@constructionoffers.ca from your purchase address and we will resend your serial and download link.