Outlook for Mac Email problem after Cox maintenance

my settings are precisely what is described in the link Jonathan J sent.  When i open Outlook, I receive a message that " a unknown error occurred in Outlook"  The details state that Outlook could not receive mail. Error code 150

my settings are all correct as well.  

Very interesting.  Based on your post,  I discovered I can send email as well.  That tells me it is a POP connection issue.

I just tested mine too - I can SEND email as well.

Also just tested and can now send. Still no receiving.

I agree-it's a POP problem. I receive all emails via IMAP on an iPad, iMac and an android smartphone. I use both Microsoft Outlook 2011 and 2016 on my Mac and I can't receive using either one with POP. I can receive on either one using IMAP

Thanks for the update.   I did the same and upgraded and now everything is back working.

I've tried the changing of the password.  That did not work. Problem is definitely with incoming mail.  Please advise next steps.

Yes, I am getting the following using both Outlook 2011 AND Outlook 2016 on the Mac:

"Connection to the server failed or was dropped." + "Could not retrieve mail.

Account name: "<account name>"

Not a Microsoft issue - nothing changed on the Microsoft side of the problem.  Clearly a cox issue.  They either stopped supporting something (which means we''re stuck with the upgrade problem), or they broke something on Dec 5 (the more likely answer)

The problem occurs in both Outlook 2011 for Mac and Outlook 2016 for Mac since 12/5/2019 and as far as I can see, COX does not allow receiving POP email. I don't think this has anything to do with what "changes" COX claims to have made sometime back in April 2019.

Interesting.  Also - I can't seem to get IMAP to work using Outlook 2011 either.  Seems like that ought to work.  Perhaps it's the same SSL version-too-old problem.

Pop still works with Cox.  My iPhone (running latest iOS) is configured for my cox email using Pop.  My guess: iOS uses a recent enough version of SSL, and Outlook 2011's SSL v2 is now "not supported".

I agree, it's outrageous that a company like Cox doesn't have the technical expertise to fix their own email problem.  It's evident that they did something on December 5th and sadly nobody knows what it was.  Come on Cox, do something to fix this, or at least explain intelligently what was done to stop us from receiving emails on outlook.  

Im having the same problem with outlook 2011.  Cant receive and error code 150.

Cox seems to have no clue on how to fix this.  Im ready to dump cox if they dont fix the problem.  Im not upgrading office because of a cox failure.

Unfortunately, this fix is for Windows computers and there doesn't seem to be a readily available similar fix for Macs. Also "blackeneth" indicates he's using IMAP for email. Most if not all the problems discussed in this topic refer to POP receiving problems mostly on Macs. Sad that COX has done nothing to explain or address this issue and like so many issues, this one will probably die here as well, forcing affected users to either switch to IMAP or change their email clients.

I have the same problem.  12/4/19 was the last date I recieved any mail on my MAC.  I still receive mail on my iphone.  I have an Outlook error code: 150. "An unknown error has occurred in Outlook. Could not retrieve mail." I can send mail fine.  My settings on my Cox account are "Incoming Server: pop.cox.net. Use SSL to connect (recommended)"

I called Cox tech for help and they said I had to sign up for their Complete Home Service or whatever its called for $10 a month.  Sounds like they caused a problem and now want to get all their customers to pay to have it remedied.  Doesn't smell right!! I did not sign up for the service.  Kevin, please find the answer for all of these faithful Cox customers, including myself.  Thank you.