Mavericks Mail won't download new messages from Gmail accounts until restarted

I am having this problem, too. Only happens occasionally, but it is frustrating and I hope they fix the bug.

Same problem. Very frustrating. Also won't update "unread" mail messages that I have been read and deleted on my iPhone.

The next time it stops downloading go to Mail/Window/Connection Doctor and see if the accounts are connected to the servers. If not, select each server and go to the Show Detail button.

Troubleshooting sending and receiving email messages

I'm having this issue as well. I've got a Gmail account that's working fine from home (mid 2011 iMac running 10.9.1) and from an iPad I use, but my mid-2009 iMac running 10.9.1 fails to download mail unless I quit and restart Mail. I tried the Connection Doctor, and it was able to connect to the server, green light, no details.

I'm have the same problem. Mail periodically just stops downloading new mail. It's 10:18 PM and hte last emai in osx Mail is at 5:11, while my phone shows 20 emails that have come in since 5:11.

I've tried restarting osx Mail and I've used connection doctor to verify the accounts are connected.

Have you tried updating to 10.9.2? This was a known issue in 10.9.1; Apple even had a knowledge base article on it.

10.9.2 here....

After install and restart things seem to be working again without quitting and starting mail app.

I am having the same issue. The only thing that works is for me to restart or log out and then log back in. All was working fine until I upgraded to Mavericks. And I'm running 10.9.2. This is very frustrating, and is, frankly, unacceptable, but I don't see any solutions here.

I'm having the same problem, also running 10.9.2. I can see new mail message on my iPhone, but my iMac and MacBook Air don't show new messages. "Get All New Mail", "Syncyronize All Accounts", and "Rebuild" and "Connection Doctor" don't do the trick. Only restarting Mail does it.

And, each time I restart Mail, I get the "Mail Upgrade" popup, like it's the first time I ran Mail. So, this could be the problem.

Any one have more ideas on how to fix this?

After screwing with this for WAY too long. I found a solution that works!

1. Right click on OSX Mail on the Doc
2. Click Options
3. Un-check Keep In Doc
4. Open Chrome
5. Go to http://www.gmail.com
6. Read your email

This happens to me in 10.9.2 as well.

I like the suggestion above to throw Mail.app away and use Gmail.com, but sadly I sometimes need a local copy of my messages!

Me too! The funny thing is it only happens with my iMac running Mavericks. I am forced to use only my iPad for sending and receiving email since this bug does not seem to affect iOS devices.

I sent a bug report to Apple yesterday, but have not heard back from them.

Same here! Normally I have no problems but since yesterday I get my mail in on the iPad but not my iMac - very annoying as I like to keep my archives up tp date on the iMac. Restarting Mail and doing all the other tricks does not help.