Thunderbird Community Forum

The issue has been "An error occurred connecting to mail.mediacombb.net:993." on the server page, where you can "test connection to server" in Account > Server Settings > Security Settings. I get the same error message for each four different accounts. I have no problems with the other two different accounts not associated with Mediacom (MC). I contacted MC and they said my settings were correct and to contact TB. I have read several posts with no real solutions except that was resolved through an update. I plan to switch to a different Linux distro later. I am currently using Big Linux Manjaro with the latest update. Note that I had no problems with TB until last month. I do not do the uninstall/reinstall apps unless it will resolve my issues as a last resort. Second, sometimes I receive MC e-mails and did not run the "test connection to server," then until today while troubleshooting for several hours. I was trying to send out an e-mail, which I had no problems last week. I already went to Account > Server Settings > Advanced and changed the "Maximum number of server connections to cache" from 5 down to 1 with no luck.

  The e-mail server settings are:

imap.mediacombb.net 993 SSL/TLS Normal Password and smtp.mediacombb.net 587 STARTTLS Normal Password They have not been changed since I switched from windows 10 to Zorin 18 to currently Big Linux Manjaro. I attempted to locate a method to check if the server settings were correct via Terminal. M$ Outlook has a test page that you can send to yourself or another e-mail account. Last, MC tech informed me that M$ Outlook is more friendly than TB. I know that I have used M$ Outlook for years and rarely had any connection issues unlike TB. Unlike Evolution, which was my first after M$ Outlook, TB is much better and easier than Evolution. Thank you in advance for your time and advice.

Hello Thunderbird Support, I am experiencing a severe IMAP folder synchronization loop with my Yahoo Mail account ([redacted]@yahoo.fr) inside Thunderbird. Yahoo Support claims the issue is caused by Thunderbird's folder mapping, so I am reaching out to you for a solution.

1. 1. The Problem:

The system-protected folder "Bulk" (Spam) has somehow been moved or mapped as a subfolder inside the "Trash" folder.

• In the Yahoo Mail Web UI (Chrome), the subfolder is invisible, but the Trash directory shows an arrow (^) indicating a child folder exists.
• In Thunderbird, the Bulk folder is clearly visible inside the Trash folder, marked with the flame (Junk) icon.

1. 1. What goes wrong:

When I delete spam messages via Thunderbird, they get trapped inside this nested Trash/Bulk directory. If I try to delete or empty it, the emails disappear but the folder itself cannot be removed.

1. 1. Steps tried so far that failed:

1. Attempting to delete or rename the Bulk folder inside Trash gives the server error: [CANNOT] DELETE failed - Mailbox is reserved. 2. Using Shift + Delete on the folder is rejected by the Yahoo server. 3. Unsubscribing from the folder via "Advanced IMAP settings" -> "Show only subscribed folders" fails; Thunderbird re-downloads the structure on the next sync. 4. I have completely deleted my old Thunderbird profile folder and created a brand new one using thunderbird.exe -P. Upon adding the Yahoo account via OAuth2, Thunderbird immediately pulled the same broken Trash/Bulk structure from the server again.

Since Yahoo refuses to help and claims Thunderbird caused this mapping loop, is there a hidden config setting (about:config) or a database override in Thunderbird that can force the server to release or move this reserved folder back to the root directory? Thank you for your assistance.

I have a lot of emails stored in different local folders. My search now hang. They go so far than just hang. Is there a way to rebuild the complete indexing for my thunderbird install?

There seems to be an incompatibility between Thunderbird and Comcast. I stopped being able to send emails from 2 different computers a few days ago. Comcast has gone to IMAP and I had POP3. When I deleted my TB email accounts and tried to re open them as IMAP, the connection was refused by the server. I've spent hours on the phone with Comcast, but there was no solution. I've switched to Outlook and it works fine as IMAP. I would like to use Thunderbird again. I have 10 years of important emails stored in the local folders so do not want to lose them. I think this is a problem between Thunderbird and Comcast, but no one owns the problem, except me. Is there a solution? Thanks, Larry Kapinos

When adding email accounts to Mozilla Thunderbird, when I test our the settings, I get an error message "unable to connect your account to mail.canby.com. As a result since August 6 I have been unable to access my email accounts with error code as the server is not responding or cannot get emails. Have not been able to get assistance from our internet service provider DirectLink in Canby, OR. Have been in Live Chat with about 6 techs who basically have given up and said contact Thunderbird to solve the problem. Anyone have any advice? I can read emails on mail.canby.com. Thanks. agent1943@canby.com

Hi, Hoping I can get some help here, I couldn't find an answer in the search topics.

I have lost a few local subfolders. First the subfolders lost the emails contained in them and then the subfolders themselves disappeared.

I renamed the main folder just removing the year from the folder name and not long after that the above happened.

I have tried the following:

• Searching the help topics • Searching the forum • Closing reopening Thunderbird • I removed .msf files and restarted Thunderbird

I am not sure what I can do now.

Thanks in advance for any help.

Does anyone no why I would keep getting these types of messages. Also the only glitch I've experienced is occasionally in writing an email it fails to save to draft. Thanks.

Put the Thunderbird app for Android on my Samsung Galaxy S7, then tried to add my AOL email account. When I get to the step where Thunderbird asks me to sign in to AOL with my password, I get an error message saying "For account security, the window must be at least 320 x 200. Please resize the window." At this stage of Thunderbird set up, there are no options I can access to resize anything. I also can't tell what version of Thunderbird it is (downloaded about a week ago). Thanks.

I have been using Thunderbird for many many years. I am 70+ and the number and kind of hoops I have to jump through just to keep getting my email are getting beyond me. I recently moved my business hosting, and somehow a change was made in my original email code on Thunderbird so I was not able to do anything with it. I want it on Thunderbird BUT I live in a small rural town and can't find anyone who has been able to help me. The other email systems require a code sent to a cell phone, and although I have a simple emergency phone I do not have a smart phone so I can not receive the code. The other email systems I've tried require an email code be sent to a smart phone almost every day, and although we tried to do this with my daughter's smart phone she is frustrated with me because she has to come over and help me so often. Also, I have so-o-o-o many emails in my original account and I don't want to lose them. Can anyone help??? Does anyone there at Thunderbird work on anything like this? Is there a way to reach Thunderbird directly???

I have had Thunderbird from the time I acquired my Mac computer. This week it started to do something new. After a restart I opened Thunderbird. A box came up that says across the top System Integration. The cursor balloons, and hasn't stopped for the time I powered the computer, as least fifteen minutes. You know how the program icons are in a dock across the bottom. With other browsers open, hitting the Thunderbird icon doesn't bring its window into the forefront. This needs either a reset, or possibly a backup first. Is there a quicker way to fix this? Thanks in advance. I am not using a VPN; but I also have Thunderbird on my Windows 11. You might have seen a more recent thread on that installation. I included a screenshot. It was easier here to do that than on the Windows 11. On the Mac, I just had to use Activity Monitor to close out of Thunderbird in order to get its version.

I changed my password in my Juno account and have logged in via a browser with the new password several time. But Thunderbird attempts to connect continue to fail. I deleted the old password in Thunderbird in the Privacy & Security section thinking it would update when the new password works - unfortunately, it never works. I reviewed all the Juno settings in Thunderbird and they are all consistent with the Juno Support recommendations. Now what?