Hi there, I have a GMail account with over 15'000 E-Mails and it seems lately (actually since I switched to my new MacBook Pro 13) it takes sometimes several minutes until new emails are being downloaded. Especially when I start up the laptop for the first time in the day it just shows that "working" circle next to the Mailbox and it's working and working but no new emails are being fetched. I still have full access to all the old emails though. And then after about 3-5 minutes the new emails show up. Another weird thing is that sometimes after just receiving the mails, all the new mail shows up twice! And then after a minute the duplicates disappear. So I am not sure if that has anything to do with the fact that I have over 15'000 emails.