do you have a security product scanning email? It sounds like something is dying after first use. If it was Thunderbird it would reset after each restart, from what you say that is not the case. Only a reboot fixes it.

Yes, I use Malwarebytes and Microsoft Defender but always have. A computer reboot the same day does not fix it. A reboot the next day fixes it but only once for that day. I have a secondary account with WOW cable. That account is OK. Discussion with EE.Net. They say no issue at their end because the webmail portion is OK.

Unfortunately providers often tell you if web mail works there is no trouble their end. What they are actually saying is we offer pop and SMTP service, but we do not support them. If web mail works we consider our obligation to provide email fulfilled.

Neither accurate or correct sometimes. That your provider is proudly offering instruction to set up Eudora which has been out of support for around a decade and Netscape which went out of business around the turn of the century sort of leaves me thinking they might be a little less than on the ball. For that matter the only email client listed that is still supported by it's manufacturer is Outlook and the 2003 version they are offering advice on has not been supported by Microsoft for more than a decade. They also appear to have missed Windows 10 in their setup guides.

Based on the copyright statements on their web site they stopped updating it in 2014. so I guess that will not be a source of useful information.

So what we are left with really is asking you to log the connection and see if we can get something useful from that. See https://wiki.mozilla.org/MailNews:Logging#Windows

The process is a little arcane, but if you follow the dots is not really all that difficult. Once you have the log, post back with the size of the file involved and we can try and work out how to get it to me.

All that is required in the lot is a single failed attempt, but these logs get very big very fast. So I wait on you before working out how to view it.

Thanks for your help Matt. I'm aware of their "canned" answer. Since I know the people at EE.Net and their hosting location is close to me, I'll just show up at their place and ask the owner the same question.

But first, you state that if rebooting in a given day does not fix it so it's probably NOT a Thunderbird issue. I agree. That said, let me first try Email access from my other computer to see if I get the same issue. If I do, it's off to EE.net. Art.

Matt, Still unable to fix problem. EE.net said there is nothing they can do because my web mail with them works OK. That's all they control. The log files will not show the Thunderbird to EE.net activity.

They told me a number of their Outlook customers have had this similar problem and the only way to fix it is re-configure the EE.Net account by deleting it and creating a new one. Since I also have an IMAP account with Wowway.com it is possible they interfere because they said I'm not supposed to have an IMAP account (wowway) and a POP3 account (EE.net) at the same time. They said that may be the reason I get bulk Emails when I start the computer each morning but nothing during the day.

The same problem exists on all three of my computers. Maybe, I'll delete the internet ee.net connection on my workroom computer and try re-installing it there. If I get it working it'll restore confidence to try fixing my office computer.

I'm very hesitant to change anything because of the difficulty I had creating this system in the beginning, 7 or 8 years ago. I'm afraid I'll loose everything I have now so I don't want to touch it if at all possible. I'm an electrical engineer that has learned many years ago if it's working now, don't attempt to try to make it better.

Suggestions are most welcome, Art.

Don't delete anything... that is usually only going to make things worse. If you want to experiment, create another profile and add you email address to that. About:profiles from the troubleshooting information on the help menu has a reasonable wizard for creating additional profiles and switching between them.

Basically I have only skimmed your response as of now, but I think you are being fed a line that I can best describe as BS baffles brains.

They own and administer the mail servers you are connecting to and those servers have logs. That they are either ignorant of that, or simply refusing is neither here nor there. They have much more in this that their web site, which is what web mail is.

I fail completely to comprehend what wowway has to do with it, so perhaps you could fill in some blanks. I assume it has something to do with merges or takeovers that places them on the same hardware.

But most important is this logging. I assume you are not getting anything in the log at all, which would indicate a problem with the batch file being used. The link I gave you should be logging IMAP as it stands, so I would expect it to be logging this wowway account. But the real thing is the batch file when executed should launch Thunderbird but is it?

If it is not starting Thunderbird try changing the last line to as 32 and 64 bit version are located in different locations.

"%ProgramFiles%\Mozilla Thunderbird\thunderbird.exe"

This is the batch file you would need for a window machine to log POP mail accounts.

set MOZ_LOG=POP:5,timestamp
set MOZ_LOG_FILE=%USERPROFILE%\Desktop\POP.log
"%ProgramFiles(x86)%\Mozilla Thunderbird\thunderbird.exe"

P.S. As I got to this point I am left with a sneaking feeling that perhaps you need to check your connection settings and make sure that he connection security is set to none and the connection password is set to normal password. It would not surprise me at all to find this mob have multiple servers and one some of them actually support modern encryption.

Perhaps go to this address https://ssl-tools.net/mailservers/ee.net while logged into the internet using the ee system and see if it works for you. Connection to the servers is unavailable to me, so I am guessing you have to use EE infrastructure to connect to the internet (and no VPN to hide that) to access the mail servers. A popular caper with older USA based ISP's

You said you use malwarebytes... does that include the vpn https://www.malwarebytes.com/vpn