I am having trouble getting my clients website to send the form details to their email. Their email is not handled by their hosting but externally using Office 365.
I have tested the site forms and they send succeffully to a wide variety of test email accounts ALL except the Office365 email accounts. The sites IP address has been added to the emails white list. Ive tried using a SMTP plugin but still no joy.
Has anyone ever had this issue and know how to resolve it, I have ran out of ideas???