Sent Emails end up as Junk mail
Hi
Some of my Wifes sent emails end up are ending up as Junk Mail on other peoples computers. She sends a lot of Emails for work and finds it hard to keep track on who is receiving them or not. She is using the Apple Mail on a MacBook Pro with Yosemite OSX
Any advice on how to correct this?
Cheers
Mark
MacBook Pro, Mac OS X (10.7.5)