We are using Exchange 2013 on one server with both roles and default connectors for send/receive. Prior to Exchange 2013 we used SBS2003/Exchange 2003 that used a POP3 Connector to receive mail from our ISP. Maybe we do not have something setup correctly, but now if there is any downtime (Router changes, power out, server rebooting, etc.) mail will get left at the ISP. When everything is back online, Exchange 2013 does not retrieve the mail. Do we have to enable POP services and or other settings?
How do we deal with this issue?
Thank you.