Mail delivery failed: returning message to sender

Unable to send email to Hotmail, But can receive email from Hotmail. Everything else is working like google and yahoo
Thank you in advance

Did you setup your spf and dkim dns rules properly?

Maybe you can place the response here so we have more information to help you.

Sorry for the late update but I was talking to @Sameera and the problem is that Hotmail/Outlook is blocking its ip so the server can’t send mails to Hotmail, nothing related to Hestia.

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