we have a mail server hosted in the cloud. in short (good antispam). but we need to configure exchange to benifit from calendars and calendar sharing and address books and the likes
i can send but can't receive. I don't know how emails are supposed to come from my external mail server to exchange. am I supposed to create a receive connector, or have the external email server relay messages to my exchange, or use a third party software to download all emails from external mail to exchange.
also I think I messed up my default receive connectors security tab settings. if somebody is kind enough to post images of the receive connectors security tab I would really appreciate it. " I know the default frontend connector is fine cause I saw an image for security tab on internet".