Q: Outlook for Mac 2011 (14.3.9) on Mac OS X Mountain Lion 10.8.5 and Snow Leopard 10.6.8 has stopped communicating with our company Exchange server.
Outlook for Mac 2011 (14.3.9) on Mac OS X Mountain Lion (10.8.5) and Snow Leopard (10.6.8) has stopped communicating with our company Exchange server. Please help!
Last week, Wednesday February 19th, 2014 my iMac with OS X Mountain Lion 10.8.5 received an error on Outlook for Mac 2011 14.3.9 that "Mail could not be received at this time. The server for account "xxx" returned the error "Logon failure: unknown user name or bad password." Your username/password or security settings may be incorrect. Would you like to try re-entering your password?" I have two Exchange accounts in my mail client and received this error for both profiles. I tried reentering the passwords and still could not get it to work.
I know it's not an issue with my Exchange network credentials because mail on my iPhone and iPad never lost service. Also, on that same day, mail continued to work in Outlook for Mac 2011 14.3.9 on my MacBook running Snow Leopard 10.6.8.
Occasionally I could reboot my system, relaunch the application, and new Exchange emails would load but then would immediately time out and give the same error again.
I also would from time to time, check or uncheck the "SSL" setting in the Advanced Account settings and could get connectivity for about 1 hour until it would time out again.
Then, Thursday, February 20th, 2014 Outlook for Mac 14.3.9 gave the exact same errors on my Macbook running Snow Leopard 10.6.8.
Now I cannot manage my mail on either computer and must do it all on my iPhone or iPad which are still working just fine.
Both OS's and Office products are fully up-to-date with the latest softwares and no changes were made from our IT department to the Exchange server.
PLEASE HELP! Myself and my IT department are stumped at this point and cannot seem to find a viable solution out on the net. Any assistance or suggestions is GREATLY appreciated!
iMac, OS X Mountain Lion (10.8.5)
Posted on Feb 27, 2014 10:34 AM