Answered by a verified Email technician We use cookies to give you the best possible experience on our website. I am trying to load outlook on my email on my iPhone and i cannot verify my identity as I can't remember my password.Yeah, there is way to achieve this requirement still. This is one of worst limitation of Office365 server and mailboxes along with too many others. Descriptions: First thing first, there is no option in mailbox properties to restrict a specific user from sending email outside the organization if you are using Office365 online exchange server.
It works on most current computers or devices and solves many of the common problems with sending email such as relaying denied errors or blacklisting issues.