Odd Server Connection Problem
I use a MacBook Pro for a nonprofit food bank.
Will not connect to server for either Safari or MacMail now.
However I can connect to the internet using Firefox.
Could really use input to correct this. I need this laptop up and fully functional.
Any thoughts on why I can connect online one way and not the other?
System
10.13.6 High Sierra
MBP 13" early 2011
2.3 GHz Intel Core i5
MacBook Pro 13", macOS 10.13