TIP0000010: SMTP.OFFICE365 Fails

Question: Can Office365 work through HelpDesk Post Office? Answer: Yes. You need to check which version of Office 365 you have, and then verify the settings. Based on security authentication you may have to setup a relay allowing HelpDesk to relay instead of trying to authenticate on its own. https://support.office.com/en-us/article/How-to-set-up-a-multifunction-device-or-application-to-send-email-using-Office-365-69f58e99-c550-4274-ad18-c805d654b4c4 If you are using the Cloud based 365, you need to be aware of security that could block in-bound emails. Besides adding the senders domain to the white list, you may also need to add their senders IP address.

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