User Agent: Mozilla/5.0 (Windows NT 6.1; rv:94.0) Gecko/20100101 Firefox/94.0

Steps to reproduce:

Open TB.

Actual results:

Every minute, a message appears in the status bar at the bottom of TB, “Downloading message 1 of 27 messages in Inbox” with 1 increasing from 1 to 27. All new messages arrive without issue.

Please check the attached following Error Logs, one for each of my two Inbox mail folders. Same behavior, one counting from 1 to 27 and the second mail account counting from 1 to 3. The third Error Log is created over several minutes.

Expected results:

Nothing

Bug 1734843 perhaps

Can't tell much from your attachment. Maybe an IMAP:5 log would tell something more relevant (for details see https://wiki.mozilla.org/MailNews:Logging). I'm assuming you really are using IMAP to get emails.
It's always helpful to explain what activities you are doing in TB while recording the IMAP log.

Do you have TB configured to check for new mail every minute? Also, knowing any other server configuration details set in TB would be helpful.
Also are you running a 94.x TB beta or an "ESR" release like 91.x? Did the problem start after a tb update?

I created the attached three line batch file and executed it as an administrator on my Win7 desktop. After running TB, there was no IMAP.LOG file on my desktop (or on my PC anywhere). Any suggestions?

Other info requested:

TB Version number = 94.0b2 (I noticed this behavior starting with 94.0b1)
Server Type = IMAP Mail Server
Server Name = mobile.charter.net
Port: 993
Security = SSL/TLS
Check for new messages every one (1) minute

When I open TB and do nothing, every minute it shows a status of downloading 1 to 44 messages for User1 and 1 to 3 messages for User2. I have no idea what messages it is trying to download. I see little or no network activity on my internet monitor.

During the same time when TB is running, arriving new messages appear in the Inbox, I can read them, and they stay there as normal until I remove them.

Any other help would be appreciated.

Thank you

Did running the file actually run TB or did you end up running TB in the usual way? It must be run from the file to record the log.
If running the file didn't start tb, is tb actually installed at "%ProgramFiles(x86)%\Mozilla Thunderbird\thunderbird.exe"
Maybe tb is installed at just ProgramFiles if it's a 64bit version?

I'm on mobile.charter.net too and don't see a problem but not at 94.0b2 with charter. But 94.0b2 is ok for me on gmail and o365 (exchange) in a separate profile.

Not sure what you mean by "User1" and "User2". Are these folder names or actually users? What's your "internet monitor"?

As requested, IMAP log file.

Please let me know if you need more info.

Thank you

Thanks for the log. However, I messed up and posted several comments intended for you regarding your charter accounts and a parameter called "force_select" on the wrong, but similar, bug starting here: bug 1734843 comment 27. (That bug actually pertains to a gmail account.)
I haven't been able to duplicate the issue but I do suggest some thing to try there. I'm not sure if anything there will help since I've been unable to duplicate the issue with my charter account and the latest beta.
Please reply to the comments in bug 1734843 here.
Thanks and sorry for my confusion.

NoJoy, Anything more to report?

This was first seen in 94, correct?

Problem solved – Created a new profile and the issue was fixed.

Thanks everyone for your ideas. I tried most of the ideas from Bug 1734843 (except rolling back to 93.0b5) without success.

Steps to fix the problem:

1. From cmd prompt – "C:\Program Files\Mozilla Thunderbird\thunderbird.exe" -p
2. Create new profile and start TB
3. Add my four (4) charter.net mail accounts and TB automatically syncs Inbox and Sent folders with the charter server – success.

To bring over the address book and calendar from the old profile:

1. Copy file abook.sqlite from old profile to new profile
2. Copy entire folder calendar-data from old profile to new profile
3. Extract from file prefs.js found in the old profile folder calendar-data, all entries starting with “user_pref("calendar.” (there are 15 lines) and edit file prefs.js found in new profile folder calendar-data, replacing all of those “user_pref("calendar.” entries with ones from the old profile prefs.js file.

These entries from the old profile prefs.js file look like this:

user_pref("calendar.list.sortOrder", "77f3ca3c-133e-492b-a63b-47c9149f7a6f 4011805e-6fb7-4bba-a710-4f17bffb3ff6");
user_pref("calendar.registry.4011805e-6fb7-4bba-a710-4f17bffb3ff6.calendar-main-in-composite", true);
user_pref("calendar.registry.4011805e-6fb7-4bba-a710-4f17bffb3ff6.color", "#a8c2e1");
user_pref("calendar.registry.4011805e-6fb7-4bba-a710-4f17bffb3ff6.imip.identity.key", "id1");
user_pref("calendar.registry.4011805e-6fb7-4bba-a710-4f17bffb3ff6.name", "My Calendar");
user_pref("calendar.registry.4011805e-6fb7-4bba-a710-4f17bffb3ff6.type", "storage");
user_pref("calendar.registry.4011805e-6fb7-4bba-a710-4f17bffb3ff6.uri", "moz-storage-calendar://");
user_pref("calendar.registry.77f3ca3c-133e-492b-a63b-47c9149f7a6f.calendar-main-default", true);
user_pref("calendar.registry.77f3ca3c-133e-492b-a63b-47c9149f7a6f.calendar-main-in-composite", true);
user_pref("calendar.registry.77f3ca3c-133e-492b-a63b-47c9149f7a6f.disabled", false);
user_pref("calendar.registry.77f3ca3c-133e-492b-a63b-47c9149f7a6f.name", "Home");
user_pref("calendar.registry.77f3ca3c-133e-492b-a63b-47c9149f7a6f.type", "storage");
user_pref("calendar.registry.77f3ca3c-133e-492b-a63b-47c9149f7a6f.uri", "moz-storage-calendar://");
user_pref("calendar.timezone.local", "America/New_York");
user_pref("calendar.ui.version", 3);

Now running 94.0b3 with success.

Again, thank you for you suggestions and help.