Add a mailbox in a minute
Server settings fill in automatically for Gmail, Onet, WP and DreamHost. The wizard checks the connection straight away.
From January 2027 Gmail stops fetching mail from other accountsWhat next
All your email accounts in one window
Gmail, your company domain and mailboxes such as Onet, WP or Interia in one panel in your browser. Your messages stay with your providers, and you have them at hand on any computer.
Test versionReading mail from all your mailboxes already works. Sending from the right address is in progress.
- EU serversOVHcloud, backups in a second data centre
- Two-factor authenticationAlways on, no exceptions
- Encrypted passwordsAES-256, a separate key for every account
- Mail stays with your providerWe do not store message content
January 2027
Gmail is ending mail fetching from other accounts. What next?
Google announced on Gmail help pages that in January 2027 it will switch off three features that let Gmail work as one inbox for everything. Existing settings keep working until then, and Google is already restricting new ones.
Gmail ends POP3 fetching and “Send mail as”: what to doFetching mail from other accounts (POP3)
Gmail will stop fetching messages from your work domain and other providers.
“Send mail as” for third-party addresses
Neither on the web nor in the Gmail app will you be able to send mail from another provider’s address through your Gmail account.
Gmailify
Other providers’ mailboxes lose Gmail spam filtering and categories.
Source: Gmail Help, as of 17 October 2026. support.google.com
One panel for all your mail
multiboxi connects to each mailbox the way a mail program does, over IMAP and SMTP. It runs in your browser, so there is nothing to install.
Every mailbox has its own colour
You choose the name, colour and order of your mailboxes. You see at a glance which mailbox has unread mail.
Two-factor authentication, always on
You sign in with a password and a code from an authenticator app. Backup codes help if you lose your phone.
In progress
Replies from the address the message was sent to
Reply from the right address without setting up “Send mail as”. Drafts and sent messages stay with your provider, so your phone sees the same.
How to switch to multiboxi
Join the waitlist
We will send one email when registration opens.
Prepare app passwords
Gmail requires them, Onet does with two-step verification. Our guides show where to create them.
Add your mailboxes in the wizard
Settings for Gmail, Onet, WP and DreamHost fill in automatically. Any other IMAP mailbox can be added by hand.
multiboxi compared with other options
Google points to your provider’s website or app, a mail program on your computer and the Gmail app on your phone; forwarding is another route. multiboxi is shown alongside.
| Forwarding to Gmail | Gmail app on a phone | Mail program on a computer | multiboxi | |
|---|---|---|---|---|
| All mailboxes in one place on a computer | yes. in Gmail, receiving only | no. | yes. on the computer with the program | yes. in the browser, on any computer |
| Reply from the address the message was sent to | no. from January 2027 | yes. as a separate account | yes. | In progress |
| Mail stays with your provider | partly. a copy goes to Gmail | yes. | partly. depends on settings | yes. |
| Nothing to install | yes. | no. app on the phone | no. on every computer | yes. |
| Cost | free | free | depends on the program | free during testing; then Start at no cost, paid plans planned from €2.49/mo |
- Forwarding is set up with your other provider. Messages arrive in Gmail, but you can reply only from your Gmail address. Forwarded mail may land in spam, for example when the sender’s domain has a strict DMARC policy.
- The Gmail app shows each mailbox as a separate account, but only in the app on a phone or tablet.
- A mail program (such as Thunderbird, Outlook or Apple Mail) handles all accounts, but you set it up separately on each computer.
- multiboxi works in the browser on any computer and phone, and your mail stays with your providers. It is in testing: see what already works.
How we protect access to your mailboxes
Every tool that handles many mailboxes needs access to them. So we tell you exactly how we protect it.
App passwords
Where your provider offers them, you connect a mailbox with a separate app password that you can revoke at any time.
AES-256 encryption
Mailbox passwords are encrypted with your account’s key. The master key is not kept in the database.
Two-factor authentication
Mandatory for every account. Plus an email when someone signs in from a new device, and sign-out everywhere.
Content stays with your provider
multiboxi fetches a message when you open it and does not store its content or attachments.
Images blocked
Images from the web load only when you choose, so senders cannot use them to tell that you opened their message.
EU servers
OVHcloud in the European Union. Backups in a second data centre, protected against deletion for 30 days.
What already works and what is coming
We describe only what is built. Everything else is clearly marked.
Ready in the test version
- Adding mailboxes over IMAP and SMTP: ready-made settings for Gmail, Onet, WP and DreamHost, others by hand
- Connection check when you add a mailbox
- A list of all your mailboxes with the unread count in each Inbox
- Every mailbox’s folders: Inbox, Sent, Drafts, Trash, Spam, Archive and your own
- Reading messages and downloading attachments
- Images from the web blocked until you choose to show them
- Marking as read and unread, stars
- Your own name, colour and order for each mailbox
- Mandatory two-factor authentication, backup codes, list of signed-in devices
- Polish, English and Ukrainian; works well on phones too
In progress
- Writing and replying automatically from the address the message was sent to
- Drafts saved with your provider, moving between folders, Trash and Spam
- New mail without reloading the page (every 15 minutes in the Start plan)
- Search in one mailbox and in all of them
- A shared Inbox for all mailboxes
In this order. Each feature reaches users after testing.
Later
- Fast full-text search and a copy of messages with attachments, for the mailboxes where you turn it on (in the Pro plan)
- Connecting Google and Microsoft mailboxes with account authorisation (OAuth), without an app password. This will also let you add Outlook.com and Hotmail
Planned prices after public launch
multiboxi is free during testing. Later you pay for the number of mailboxes. Prices may still change.
Start
Gmail and one other mailbox
€0free
- Up to 2 mailboxes
- New mail checked every 15 minutes In progress
Plus
RecommendedHome, work and a few addresses
€2.49per month
or €24 per year
- Up to 10 mailboxes
- New mail right away In progress
Pro
Several businesses and domains
€4.99per month
or €48 per year
- Up to 25 mailboxes
- New mail right away In progress
- Priority support
- Message copies and fast full-text search Later
In every plan:Gmail, Onet, WP, Interia, DreamHost and other IMAP mailboxesReplies from the address the message was sent to In progressMandatory two-factor authenticationServers in the European UnionNo ads
Is Gmail really going to stop fetching mail from other accounts?
Yes. According to Gmail Help, January 2027 brings the end of POP3 fetching from other accounts (“Check mail from other accounts”), “Send mail as” for third-party addresses, and Gmailify. If you already use these features, they keep working until January 2027, and Google is already restricting new setups. Everything about the changes.
What changes in “Send mail as”?
From January 2027 Gmail will no longer send mail from another provider’s address (such as your company domain) through your account, neither on the web nor in the mobile apps. “Send mail as” keeps working for Google-hosted addresses: other Gmail addresses and Google Workspace aliases. You can still add a third-party mailbox to the Gmail app on your phone as a separate account (IMAP) and send from it.
Do I have to give up Gmail?
No. You add Gmail to multiboxi like any other mailbox and see it next to the others. Your address, messages and labels stay in Gmail.
Where is my mail? Do you move it to your servers?
It stays with your providers. multiboxi connects to your mailboxes live and does not store message content or attachments. That is why your phone and other apps see exactly the same thing.
Does multiboxi know my mail password?
multiboxi stores the password you connect a mailbox with: ideally an app password, not your main mail password. It is encrypted (AES-256) with your account’s key. This is not end-to-end encryption, because the server has to decrypt it to connect to your mailbox. You can revoke an app password with your provider at any time.
When can I start?
The first version is ready and in testing. We will open it to the first people from the waitlist. Join the waitlist and we will email you when registration opens.
Be ready for January 2027
Your Gmail settings keep working until January, so there is nothing to switch off yet. Join the waitlist and we will tell you when multiboxi is ready for you.