I upgraded OS 10.10.4 yesterday and now my email won't send
I did the upgrade sent out yesterday on my MacBook Pro. Now I cannot send email. At first it told me all my accounts were offline. After multiple restarts and attempts to reset by "take all accounts offline" then "take all accounts online" I at least was able to get the "offline" to go away and it says my accounts are all online. I am receiving email through my primary account but cannot send no matter which account I use.
MacBook Pro, OS X Yosemite (10.10.4), Apple Email