Office 365

I have a hell of a lot of mail accounts, K-9 Mail on Android helps me manage them all. Here’s how to set up K-9 Mail with Office 365. You will first need to set up SMTP Auth on your Exchange Tenant. This is a simple process, but it does require you to have access to the Exchange Admin Centre. If you don’t have access to the EAC, you’ll need to ask your Exchange Admin to do this for you....

The proxy address is already being used by the proxy addresses of another mailbox Why can’t I create a mailbox at account@domain2.com if one already exists at account@domain1.com The Problem So, you have two (or more) domains associated with your Office 365 Exchange account. When you try to create a shared mailbox on one domain, you encounter an error stating the proxy address is already being used. For example You have two domains, lets call them domain1....