{"id":10227,"date":"2026-10-05T05:44:43","date_gmt":"2026-10-05T05:44:43","guid":{"rendered":"https:\/\/www.macsonik.com\/blog\/?p=10227"},"modified":"2026-10-05T05:55:15","modified_gmt":"2026-10-05T05:55:15","slug":"migrate-t-online-emails-to-office-365","status":"publish","type":"post","link":"https:\/\/www.macsonik.com\/blog\/migrate-t-online-emails-to-office-365\/","title":{"rendered":"Migrate T-Online Emails to Office 365: Simple Solution"},"content":{"rendered":"\n\n
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User Query:<\/strong>

\n My T-Online mailbox is almost full, and my company has just moved to Microsoft 365. I have thousands of client emails with attachments that I can’t afford to lose. Is there a safe way to bring everything into my new account without copying messages one by one?
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Introduction:<\/strong> Anyone who has relied on a T-Online address for years knows how quickly the mailbox fills up. Once it is full, new emails start bouncing back, and finding an old client message becomes a daily trouble. Keeping mail in two places only makes this worse for people who now work on Microsoft tools. That is why many users want to migrate T-Online emails to Office 365 without losing folders, attachments, or message dates. In this blog, we cover the manual route and its drawbacks, followed by the MacSonik IMAP Backup Tool<\/strong><\/a>,<\/strong> a much quicker option for larger mailboxes.<\/span><\/p>\n

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