WPO365 can help to improve the reliability of sending emails using Microsoft Graph. You can – for example – configure it to log all attempts to send an email in an audit log. Alternatively, WPO365 can pro-actively try and detect if an email failed to send. If that happens, it can retry – up to 3 times – to send the email again.

Perform the steps explained in this video tutorial to improve the reliability and help prevent customers or other types of visitors not receiving emails that they are probably expecting!