Emails & messages sync not working

[AC Question]

notes that Sync is currently experiencing problems. It will be back shortly. This message is 4 days old, and Sync not corrected

 

[itguyjax8430]

notes that Sync is currently experiencing problems. It will be back shortly. This message is 4 days old, and Sync not corrected

Welcome to Android Central!

What email app are you using?

 

[king-haha]

I am using gmail, and since upgrading to 6.0.1, it seems like my various gmail inboxes and calendars will no longer sync to my phone.