Disposable emailDelivered where you already are.

Give out a random address instead of your real one. Mail sent to it is parsed and delivered straight to you, as a Discord DM, a Telegram message, or a Slack DM, no separate inbox to check, no account, no web app. Torch it when you're done.

Deploy to Cloudflare → 📖 Read the docs

Forks the repo, creates the database, deploys the Worker.

A Discord DM from the Cindermail bot showing a forwarded email, with the sender, recipient, and subject line at the top and an attached image below.

License MIT

Platforms Discord, Telegram, Slack

Runtime Cloudflare Workers, D1, Email Routing

Private hosted instance Live status →

How it works

STEP 01

Mint

/new mints a random address, permanent by default.

STEP 02

Give it out

Use it anywhere you don't want your real address going.

STEP 03

Arrives

Parsed, HTML to text, links intact, attachments forwarded.

STEP 04

Torch

/torch kills it whenever you're done with it.

Any platform

Same six commands, wherever you already are.

Discord

Structured slash commands, ephemeral replies visible only to whoever ran them, mail delivered as a DM regardless of which channel a command was run in.

Plain-text /command args, private chats only so a reply is never visible to anyone but you, works on a single Worker with no extra infra to run.

Slack

Slash commands prefixed /cm- (Slack reserves the bare names), ephemeral replies visible only to whoever ran them, works from a DM or any channel alike.

Under the hood

One Worker, no external dependencies.

StorageCloudflare D1, one shared table across all platforms

ReceivingEmail Routing's catch-all, or mail.tm with no domain at all

CleanupDaily cron deletes expired and torched addresses, sends expiry reminders

ParsingHTML to text, links intact, attachments forwarded, oversized ones dropped with a note

Rate limitsPer owner, configurable, off entirely if running just for yourself

Status pageRunning totals only, no addresses, notes, or owners, ever public

FAQ

Why not just use a hosted temp-mail service?

A hosted service is a third party operator sitting between you and your mail, an account you have to trust with it. Cindermail is one Worker you deploy yourself: no account system to trust, no operator with visibility into your specific mail. It still runs on Cloudflare's infrastructure, same as any self-hosted software runs on someone's servers, but the account, the data, and the access are yours alone.

Do I need my own domain?

No. Leave DISPOSABLE_DOMAIN unset and it runs on mail.tm's domain instead, no domain, no DNS, no Email Routing needed. Your own domain is better if you'll use it for signups, since public mail.tm addresses get blocklisted by some sites; mail.tm mode is the zero-setup option to try it first.

Can I run Discord, Telegram, and Slack at once?

Yes, any combination, all sharing the same D1 database and the same address pool, just distinguished by who owns each address. Telegram can even run in a different mode than the rest, one on your own domain and one on mail.tm, if it's split onto its own Worker.

What happens to my mail?

It's parsed once and delivered, not stored. The status page's totals are running counts, not a log: no addresses, no content, no owners, just numbers.

What if I hit my address limit?

/new refuses once you're at the configured cap (5 by default) and tells you your current count against it. Torch one you don't need to make room, or raise MAX_ACTIVE_ADDRESSES if you're running this just for yourself.