rebooted after upgrade to 38.5.1. new emails are not received by thunderbird. There are no error messages and I tried the tips on the troubleshooting page.

Thunderbird has been working fine with this email address for a year, with the same settings until after this upgrade/

I found info on another question thread , and go to an error log:

Timestamp: 2016-01-12 7:30:01 PM Error: An error occurred executing the cmd_getNewMessages command: [Exception... "Component returned failure code: 0x8055000a [nsIMsgIncomingServer.getNewMessages]" nsresult: "0x8055000a (<unknown>)" location: "JS frame :: chrome://messenger/content/mailWindowOverlay.js :: GetNewMsgs :: line 2719" data: no] Source File: chrome://global/content/globalOverlay.js Line: 99

but that doesn't tell me how to fix it

and 2 more: Timestamp: 2016-01-12 7:39:51 PM Warning: Unknown property 'margin-inline-end'. Declaration dropped. Source File: chrome://messenger/skin/downloads/aboutDownloads.css Line: 35, Column: 19 Source Code:

 margin-inline-end: 0;

and Timestamp: 2016-01-12 7:39:52 PM Error: No DownloadItem found for download Source File: chrome://messenger/content/downloads/aboutDownloads.js Line: 93

I'm no computer expert. We use thunderbird because it's been easy and reliable for over 3 years. It is now proving otherwise.

Try disabling your anti virus email scanner. (that might require a reboot. ) Usually it is the anti virus if the status part says getting mail but none actually arrive.