I'm having trouble because Outlook freezes quite often while using it. Please tell me the cause and how to resolve it. What type of account do you use in Outlook (excahnge / outlook.com / imap. ① Outlook 2019 frequently becomes unable to send or receive emails (the Internet is connected without any problems) ② Excel 2019 takes more than 3 seconds when inputting the first character (new or existing). I've been using Microsoft 365 Apps for Business on my co-worker's computer for over two years, but for the past three weeks I've been getting a message asking me to confirm my account, and each time I have to sign in, it takes two steps.
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