# Cut mailbox storage costs and digital waste for your team

Newsletters nobody reads inflate mailbox storage you pay for and pile up "ROT" (redundant, outdated, trivial) data. DontMailMe is the open-source way to stop the inflow, in every account, without anything leaving your tenant. Contact: hi@dontmailme.org

## One move, three justifications
- **Lower storage cost.** Per-mailbox limits in Microsoft 365 and Google Workspace push teams toward paid add-on storage. Stopping the inflow keeps mailboxes — and the bill — smaller.
- **Cut digital waste.** Fewer emails stored and sent = a smaller, measurable digital footprint for green-IT / ESG goals.
- **Support data minimization.** Less ROT data is easier to govern; and because the script runs in each user's own account, no inbox data leaves your tenant or reaches a third party.

## Who it's for
- **IT & admins:** reduce M365 / Exchange and Google Workspace mailbox sizes, cut low-value automated mail, avoid extra storage tiers — with an auditable open-source script, not another SaaS vendor with mailbox access.
- **Operations / ESG / sustainability leads:** turn "reduce digital waste" into a measurable action delivered as a quiet default.

## Why open-source & in-tenant matters
Most inbox tools require granting a third party OAuth access to every mailbox — a compliance review in itself. DontMailMe doesn't: the script runs inside each user's own account via RFC 8058. No server in the loop, nothing for your data-processing register, fully auditable code.

## Rolling it out
DontMailMe is free and open source. Point staff to the Gmail and Outlook guides, or adapt the open script (https://dontmailme.org/gmail.gs) and deploy centrally. For help scoping a rollout or a tailored version: hi@dontmailme.org

Related: [How it works](https://dontmailme.org/how-it-works.md) · [Compare](https://dontmailme.org/compare.md) · [Gmail setup](https://dontmailme.org/gmail.md)