Outlook is 14.3.8. It sends e-mails but doesn't receive e-mails. When I click the "Send/Receive" button nothing happens. I don't get the message "Outlook cannot connect to the server." My Internet connection is good. When I log into Comcast I have plenty of e-mails.

Yesterday Outlook froze. I quit and rebuilt the database (held Option down while restarting). Then I restarted my computer. After that it sent e-mail but hasn't received anything.

I updated to Mavericks last week. One day Outlook downloaded hundreds of old e-mails from Comcast. I fixed that by going into my Comcast account and deleting the old e-mails.