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Unable to send out emails from my Office365 account

  • Cavab yoxdur
  • 1 has this problem
  • 4 views
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I'm working with a tech person and we're having this problem.

Error "The message could not be sent using Outgoing server (SMTP) smtp.office365.com for an unknown reason. Please verify that your Outgoing server settings are correct and try again."

The account can receive emails but unable to send with that error message. Already did the ff steps:

  • Verified that the password is correct
  • Clearing remembered passwords
  • Change .office365.com to .outlook.com
  • Removed and re-added the account manually
  • Used partner.outlook.cn and smtp.outlook.cn

Thank you in advance for your insights!

Jerry