SMTP: Connector Exchange on Sharp printer

Hi，@Vincent Heidelberger

Thank you for connecting with us in Microsoft community.

Based on your description, you seem to be using Option 3.

Do you have to send emails to external recipients? If not, it is recommended that you choose option 2 for easier implementation.

You can refer to this link for details:https://learn.microsoft.com/en-us/exchange/mail-flow-best-practices/how-to-set-up-a-multifunction-device-or-application-to-send-email-using-microsoft-365-or-office-365?source=recommendations#option-2-send-mail-directly-from-your-printer-or-application-to-microsoft-365-or-office-365-direct-send

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Hello, thank you for your response. I have already configured the connector as it is written in the procedure and it worked. It is only for 2 weeks that it no longer works while I have not changed the configuration.I specify that I do it for several printers and it worked