Plan a Move from Another Mail Provider Before You Start

Secure access before changing anything

Start by signing in to your existing mailbox through its usual route. Check that you know the correct password and can complete any required second-step verification. Confirm that the recovery email address or phone number is still available to you. If access depends on a work or school account, ask the administrator about any restrictions before making changes.

Do not close the old account or remove its recovery methods just because you have created a new address. Keep access available while you check the transfer and update important contacts. If you use a mail app, note its current account settings and whether you have a separate password or app-specific setup. Never share passwords or one-time codes with a helper or assistant.

• Sign in to the old account from a device you control.
• Confirm recovery methods and any required verification still work.
• Record which provider or administrator can help if access is restricted.

Decide what “moved” means for you

A mailbox move can mean different things: bringing over selected messages, retaining an archive, using the new address for future mail, or keeping access to the old address for a transition period. Write down which outcome matters. You may not need every old message in the new inbox, but you may need certain invoices, project threads, travel details, or records.

Review folders as well as the main inbox. Make a short list of folder names to check, including sent mail, archives, drafts, and any custom folders you rely on. Providers organize and export mail differently, and a folder’s name or location may not carry over exactly. If an item is especially important, consider keeping a separate copy using an option your current provider supports.

Example plan:
Keep: recent project correspondence, invoices, and sent messages.
Check separately: archived mail and custom folder “Receipts”.
Leave behind: newsletters that are no longer useful.

Plan for address continuity

Your old address may still be stored in other people’s address books, online accounts, forms, and subscriptions. Make a list of high-priority senders and services, then update them individually. Start with accounts used for recovery, billing, work, or time-sensitive notices. Check that each service accepts the new address and complete any confirmation it sends.

If the old provider offers forwarding or an automatic reply, review its terms and settings rather than assuming the option exists or works for every message. Forwarding can help during a transition, but it does not update the address held by senders. Keep the old mailbox accessible while you watch for messages that reveal an account or contact you have not updated.

Try a small transfer first

Before moving a large archive, choose a small sample that is safe to inspect and useful for checking the process. Use the old provider’s documented export or transfer options, or a mail app only if both providers support the connection method you intend to use. Do not assume the new provider can automatically import everything. If you connect BITTU Mail through an IMAP-compatible mail app, its documented incoming settings are mx1.bittuicloud.com, port 993, SSL/TLS; SMTP uses the same host on port 465 with SSL/TLS or port 587 with STARTTLS, authenticated with the full mailbox address. Do not use port 25 or accept certificate warnings.

Choose a few messages from different folders, including one with an attachment if that matters to you. Keep the test small enough that you can compare it with the originals. Avoid using confidential material unless you understand where the mail app stores it and who can access the device.

For instance, try a few non-sensitive messages: one recent inbox message, one sent message, and one item from a custom folder. Note the original folder and whether each message has an attachment.

Check the result before scaling up

In the new mailbox, confirm that the expected messages appear and that their sender, recipient, subject, date, and readable content look right. Open the attachment in a suitable, cautious way if you need to verify it; no email transfer process makes every attachment safe. Check whether folders were preserved, renamed, or placed somewhere else. Compare the sample against the old account rather than relying on a success notice from an app.

If a message or folder is missing, pause. Check the old provider’s export instructions, the transfer method’s limits, and whether the item was actually included in the sample. Fix the cause or choose another supported method before moving more. Repeat a small check after any change, and keep the old account available until the new arrangement meets your needs.

Use a staged handover

Once the sample is satisfactory, proceed in manageable groups and keep a simple record of what you have handled. Update important contacts and accounts in stages, then check both mailboxes for messages still arriving at the old address. When you stop using the old mailbox is your decision; the timing depends on what you need to retain and what the old provider permits.

For a BITTU Mail account, sign-in and account actions are handled through mail.bittuicloud.com. Account availability and controls can depend on role, plan, and provisioning state. If you need help with a particular transfer method, check the relevant provider’s current instructions; neither an address change nor an import should be treated as proof that every message, folder, or contact has moved.