All your accounts,
within reach.
Connect multiple supported IMAP mailboxes and switch between them without signing in to each provider separately.
THE SELF-HOSTED EMAIL WORKSPACE
All your mail.
One calm place.
Bring your supported email accounts together in one browser workspace. Switch inboxes, read messages and send email without jumping between provider websites.
Browser-first Multi-account Your email stays with its provider
Currently a private MVP. Access is limited while development continues.
mailsphere.app / workspace
MailSphere
WORKSPACE
Inbox 4
Sent
Trash
CONNECTED ACCOUNTS
SStudiostudio@example.com4
TTeamteam@example.com
PPersonalhello@example.com
YOUR EMAILGood morning.Here's what's in your inbox.
+ ComposeMultiple mail accounts
One browser workspace
Provider-hosted messages
BUILT FOR EVERYDAY EMAIL
Less switching.
More getting things done.
A focused set of practical email tools, designed to work across your connected accounts without turning your inbox into another complicated app.
All your accounts,
Inbox, Sent and Trash.
Browse mail folders, mark messages read or unread, and move supported messages to Trash.
Read. Reply. Send.
Open messages, reply or forward, and compose plain-text emails using your connected SMTP provider.
A more private way to preview.
HTML messages display in a restricted viewer, with external images blocked until you choose to load them.
Your email, still your email.
Messages stay on your email provider's server. MailSphere stores encrypted connection credentials and limited temporary inbox metadata.
Built for any screen.
Open your browser on a laptop, tablet or phone and access your connected accounts through the same private workspace.
HOW IT WORKS
From scattered inboxes
to one workspace.
MailSphere is a webmail client, not an email provider. Your existing supported mailboxes connect securely through IMAP and SMTP.
- 01
Sign in
Open your private MailSphere workspace from a modern browser.
- 02
Connect mailboxes
Add your supported accounts using their IMAP and SMTP settings.
- 03
Stay in flow
Switch accounts, read, reply, and send from one consistent interface.
A THOUGHTFUL APPROACH TO EMAIL
Your messages stay
where they belong.
MailSphere connects to your existing provider rather than becoming another email server. Connection credentials are encrypted at rest. A short-lived cache helps mail lists load faster, while full messages remain with your provider.
Read the practical detailsGOOD TO KNOW
Frequently asked
questions.
Simple answers about what MailSphere does today, and where its limits are.
Is MailSphere an email hosting service?
No. MailSphere is a webmail client for accounts hosted by supported email providers. Email is retrieved from your provider through IMAP, and outgoing mail uses SMTP.
Can I combine all accounts into one unified inbox?
Not yet. You can connect multiple accounts and switch between their inboxes within one workspace. A combined inbox is on the product roadmap.
Which email accounts can I connect?
Mailboxes that support password or app-password authentication over secure IMAP and SMTP. Some Gmail and Microsoft configurations require OAuth, which is not available in the current MVP.
Does MailSphere store my emails?
MailSphere does not keep complete message copies in its database. Messages remain on the provider's server. It stores encrypted mailbox credentials and temporarily caches limited email-list metadata.
Can I use it on my phone?
Yes. The web interface is responsive and can be accessed in a browser from different devices, provided you have a MailSphere account and internet access.
Can I create a new account now?
MailSphere is currently an early private MVP. Public self-service registration is not enabled by default. Access is managed by the site administrator.
YOUR MAIL, YOUR SPACE
Ready for a calmer inbox?
Your existing accounts. One focused workspace. Available wherever you can open a browser.
Sign in to MailSphere