Now I can't even reload the earlier version and get my mail to work. Of course, I can still get my messages from Gmail and Bluemail. It is only Thunderbird which is a problem. Now my only hope may be to reinstall the backup I made two days ago before I reloaded Thunderbird the first time.

Now, I notice that I had the same problem a year ago. The solution was to boot Windows in safe mode, then start Thunderbird in safe mode. Apparently it worked once. However, now, in spite of the fact that I specifically set safe mode to open WITH networking, there is no network connection. Troubleshooting why there is no network yields the response that troubleshooting won't work unless one is connected to a network. So, starting Thunderbird in safe mode is a waste of time because one can't connect to a network. My passwords are all written in a file so that I can't forget them. The passwords that I have saved DO work when I access my mail from another client. They do NOT work when I am in Thunderbird.

No other Windows application except Windows itself is as difficult to keep running as Thunderbird.

Today, Thunderbird just downloaded several days of mail. I didn't do anything to fix it.

NCBill said

Today, Thunderbird just downloaded several days of mail. I didn't do anything to fix it.

No but your anti virus program probably got a note from home that Thunderbird's version was now 60 so it allowed it through the firewall component. BTW most of these complaints appear in this forum for Norton branded products. Is that what you use?

Matt,

That MAY be true, but when I disabled both the firewall and the anti-virus in Norton, I still couldn't get through. If true, I guess I just need to wait 3 or 4 days for Thunderbird to tell Norton. If that is a common solution to this problem, I'm surprised that when I searched for a solution, I didn't see this. I did see that I had had what appeared to be the same problem long ago, and the solution was totally different.

Matt - I tend to get testy after trying for a long time to fix things such as this. Mozilla is not the only one. I asked Gmail (and the forum) for months why it wouldn't filter my incoming mail which is almost entirely from my Bellsouth account. Finally, someone pointed out to me that the statement at the top of the filters page that "THE FOLLOWING FILTERS ARE APPLIED TO ALL INCOMING MAIL," does NOT mean that they will be applied to ALL incoming mail. Instead it means the filters are applied ONLY to Gmail originated mail. Even after I suggested that they put in a line to rectify this misleading statement, it remains.

NCBill said

Matt, That MAY be true, but when I disabled both the firewall and the anti-virus in Norton, I still couldn't get through. If true, I guess I just need to wait 3 or 4 days for Thunderbird to tell Norton. If that is a common solution to this problem, I'm surprised that when I searched for a solution, I didn't see this. I did see that I had had what appeared to be the same problem long ago, and the solution was totally different.

I will quote to make what I am responding to clear.

Norton is a personal bug bear. I used to be a fan back in the 1990s. not it makes me cranky just having to try and fight with it's dumbed down user interface. Horrible product.

You can not add an account is SONAR is enabled. IT just messes everything. But I digress. You need to remove Thunderbird from the firewall, and add it again for the new version. It sometime takes a week for the auto updates from Symantec to come trough. I really hate security software and makes life harder than it needs to be.

However to manually update your Nortons product follow their instructions here https://support.norton.com/sp/en/us/home/current/solutions/v56198038_nsmac_retail_en_us

NCBill said

Matt - I tend to get testy after trying for a long time to fix things such as this. Mozilla is not the only one. I asked Gmail (and the forum) for months why it wouldn't filter my incoming mail which is almost entirely from my Bellsouth account. Finally, someone pointed out to me that the statement at the top of the filters page that "THE FOLLOWING FILTERS ARE APPLIED TO ALL INCOMING MAIL," does NOT mean that they will be applied to ALL incoming mail. Instead it means the filters are applied ONLY to Gmail originated mail. Even after I suggested that they put in a line to rectify this misleading statement, it remains.

I think you have the cart before the horse a little.

The first dialog in the filters identified the account the listed filters apply to. The default being local folders, but each account has it's own entry in the drop down list. The Local folders default is really only useful if you us POP accounts with the global inbox. Just so happens that is what most of my mail looks like.

I see in that initial filter window text that says "Enabled filters are run automatically in the order shown below." I do not see "THE FOLLOWING FILTERS ARE APPLIED TO ALL INCOMING MAIL," Am I looking in the wrong place?

Matt,

Thanks for the information about Norton - I'll check it out. Regarding Gmail, I open Gmail, click on the gear in the upper right corner, then on settings in the drop down list, then on filters and blocked addresses. Two lines down from the horizontal list of options in settings - left side just above the list of filters is the "following filters... " line. Now, I can't find the "enabled filters...." line that you see. We're obviously looking in different places.

I would like to use both T'bird and Gmail, as I really like the T'bird filter dialogue and don't want to change my address. I can also use the Gmail for other purposes than the T'bird. I went to Gmail initially because my T'bird filters got screwed up and I couldn't seem to fix them. That was the subject of another visit to the Mozilla forum

OOOOOH. The "enabled filters ..." line is in Thunderbird! My post of 9/22/18 at 7:06 quotes a line from Gmail. Now, I will try to reconstruct my T'bird filters and, with luck won't have to bother you again. Thanks for your help.

This is getting tiresome. This morning, again, I can't send or receive email with Thunderbird. I can send it from my Yahoo window in my browser and I can receive mail in the Yahoo window or the Gmail app. I deleted Thunderbird from the Norton program control and then put it back in - c:program files(x86)Mozilla Thunderbird\thunderbird.exe

Then I rebooted the computer. Nothing has changed. It still says "mail server inbound.att.net responded: Server error - please try again. That seems to indicate that it got past Norton, but the password was either altered or deleted.

Well, Thunderbird worked for a while, but today September 30, I have not received an e-mail since Sept 28. In that time I am unaware that I have downloaded anything that might have an effect, or that I have updated either Thunderbird of my Norton protection. So, I get a few days when it works, then a few when it doesn't. Rats.

You mention an ATT/Yahoo account. Are you using a secure mail key?

https://support.mozilla.org/en-US/questions/1225036

The article indicated that my inbound server was inbound.att.com.

I know it should be pop.att.yahoo.com, but after all the hours I have spent trying to get my mail to work properly, it got reset.  I just changed it back to pop.att.yahoo.com.  

I'll give it a few days to see if it continues to work. This past week, however, it worked, then didn't, then worked again, then didn't again, and at the moment it is working. Thanks

It must be Wednesday, because Thunderbird isn't working. I have not received an email in 12 hours. However, I know I am getting mail because I can access it from Gmail.

Maybe tomorrow it will work again. It's working about 50% of the time - guess that's pretty good

That was last Wednesday. Since then it has worked from time to time. Yesterday, I did a Windows repair (takes a few hours) and then reloaded Thunderbird. I put the old profile information where the new profile was saved, and it worked. Then I went to the trouble to erase both my usernames and passwords (send and receive) and put new ones in. It took a few tries, but they worked. That was about 6 hours ago. Now, I am told there is a server error so I can't get my e-mail. This is really getting to be a pain.

I have to ask, are you using your neighbors non ATT WiFi in error so your ATT mail just does not resolve.

NCBill said

The article indicated that my inbound server was inbound.att.com. I know it should be pop.att.yahoo.com,

Then why do ATT say it is inbound.att.net https://www.att.com/esupport/article.html#!/dsl-high-speed/KM1010523?gsi=Y84YYNM

I think you need to talk to your provider and confirm your assumptions before you move on. You can not diagnose anything if you base assumptions are not correct.

Note: pop.att.yahoo.com resolves to fo-pop.mail.sbc.gm0.yahoodns.net [68.180.240.49] SO it might work as a pop server, but as you provider does not suggest it's use they may not actually give supporting that the same priority as their advertised server.

Note that the gmail and Google filters are not the same thing. Thunderbird does not execute the gmail ones and vise versa. So anything I say about filters will be in Thunderbird. Not the gmail interface I despise.

Well, Matt, lets begin with the neighbor's wifi. On all 6 of the wifi connected devices in my house, the network is the same - it even has my name in it. Moreover, I access it using a password that I created, and which I doubt my neighbor's wifi will respond to.

My wifi is at -53 dBm, my neighbor's is at -90 dBm.

Next - I just checked my settings which I made last night. Mail server - pop.att.yahoo.com port 995 Outgoing server - smtp.mail.yahoo.com port 465 From a yahoo web page Yahoo! POP3 incoming mail server: pop.mail.yahoo.com (port 995, requires SSL) Yahoo! SMTP outgoing mail server: smtp.mail.yahoo.com (port 465 or 587, requires SSL) So I changed my incoming mail server to pop.mail.yahoo.com port 995. No change.

My reason for going to the hated GMail is because Thunderbird has become so unreliable. I am aware that Gmail uses folders and Thunderbird uses filters, and that Gmail won't filter POP3 mail that comes from another provider.

Now, that said, the last message in my inbox on Thunderbird came in yesterday at 3:25 PM. I had 56 emails already today, which I retrieved on my Android phone. I checked my email using both versions of the server address. Neither is working at this moment.

As I said, Thunderbird is too unreliable. Even after reloading Windows and Thunderbird and resetting my passwords and verifying both my wifi connection and the mail servers, I still have not received any email through Thunderbird in over 24 hours.

re :I had 56 emails already today, which I retrieved on my Android phone.

You do not mention if this was gmail ? you also do not mention whether phone is using imap or pop.

If you use pop to access gmail via phone then gmail will determine it is popped and therefore may not offer it to be popped again to any other email client. This is a gmail quirk and not Thunderbird.

Read some info I've located which may help in resolving this:

https://support.google.com/a/answer/6089246?hl=en# read sections: How does recent mode work? and Re-downloading messages and excluding existing messages

• Sign in to your Gmail account. (webmail)
• Click the gear in the top right.
• Select Settings.
• Click Forwarding and POP/IMAP.
• Click Enable POP for all mail (even mail that's already been downloaded).
• Click Save changes.

Also: https://support.google.com/mail/answer/7104828?hl=en section: I want to download emails on multiple email clients

There may be something to this. Yahoo can get my e-mail, Gmail can get it, and Bluemail can. Now, I have not looked at my e-mail on any of my devices until earlier this evening, and 3 hours ago, I got the usual server error message. I just looked again, and find I have two days of messages waiting for me. I can't be certain whether any service could have "popped" my account over the past 48 hours, as I have been very busy with other things, but I have been online during that time. The one thing that causes me to question your possible solution is that Thunderbird could not get my mail 3 hours ago, but now it can. If it had been prevented because another service popped my mail, then I don't think it would be allowed 3 hours later. I'll read your reference, however, when i have time. Thanks