Manymail
Many addresses, one app.
A send-only Android mail client for domains you own, where the sender address is genuinely free-form. Pick the domain once; type whatever alias and display name you want at compose time.
Desktop clients have allowed this for decades. Almost every Android mail
app does not: the From address is welded to the account you signed in with,
so billing@, no-reply@ or a one-off alias on your
own domain is simply unreachable from a phone. Manymail exists because that
restriction is a client-side choice, not a protocol one.
- "Billing"
- display name — free text, every time
- billing
- alias — free text, every time
- example.com
- chosen from the domains you configured once
Your saved SMTP credentials authenticate the connection. They do not constrain the identity.
What it does
- Any alias and display name, on any domain you have configured.
- Rich text or plain text, attachments, inline images, Reply-To and custom headers.
- Drafts, an outbox that retries with exponential backoff, and a local sent log.
- Per-domain SMTP settings — STARTTLS, implicit TLS or none, with PLAIN, LOGIN or CRAM-MD5 authentication and a connection test that shows you every step.
- Encrypted configuration backup, and an optional app lock.
What it deliberately does not do
- No inbox. No IMAP, no POP, no sync. It sends.
- No telemetry. No analytics, no crash reporting, no ads. The only network connections are to the SMTP servers you enter.
- No second-guessing your server. Many servers refuse a From address the authenticated account does not own. Manymail does not try to predict that — it sends as typed and shows you the server's reply, word for word, with the protocol transcript if you want it.
Your passwords
SMTP passwords live in the Android Keystore and nowhere else. They are never written to the app's database, never logged, and redacted from every protocol transcript before it is stored. An unencrypted configuration export leaves them out entirely and says so in the file.
Free software
Manymail is licensed under the GNU General Public License v3.0 or later. The complete source is public: read it, build it, fork it. Forks must stay under the GPL and keep the copyright notice.