This issue occurs in newer Outlook 365 versions in combination with a on premise Exchange server. When the outlook client is configured, it sometimes asks to log in with your credentials into a 365 portal even when the email address doesn’t exist in Office 365. To solve this, we will need to add some registry …
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I’ve been using Telnet for a while now to test sending emails from a SMTP relay server. But if you are using a Windows server/client, the easier way is to use Powershell, as Telnet is unforgiving for syntax errors. If you are directly logged in to the SMTP server, you can use this PowerShell code: …
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Sometimes, Outlook will have problems configuring an Office 365 account on it’s own. When this occurs, you can try add it manually. These are the steps you should take when configuring an Office 365 account manually: Choose for Manual Setup or additional server types in the Outlook Account Setup Select Microsoft Exchange Server or compatible service Enter these …
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