Thunderbird Support Forum

I can't sign into my Thunderbird account. I keep getting this message "Login to server imap.comcast.net with username mdbedard@comcast.net failed." I can't send or receive emails.

When I receive junk email, Thunderbird shows mail received (for example 10 emails) there are ...again for example 3 in my inbox and the other 7 are nowhere to be found. Not in junk and not in trash. I am concerned that there might be some emails that are not junk that I am not able to get. I would like to be able to review the junk folder prior to deletion. What setting options do I need to change to make this happen? I am using pop email... Thanks!!

I have accounts for my husband, sister and daughter as well as myself. Lately when I try to access my emails I keep getting messages to enter the passwords for these accounts. I have never had to do this before. I don't have passwords for them and don't even really know how to do this.

Also my emails are very slow. I was waiting for a link to a podcast and the email with the code took a little over five hours after the podcast before I received it. This has never happened before.

Help. Gail

i get a pop up when a new email come in on my main monitor. i have many. sometimes i would like to just delete it there rather than open up the inbox to delete once it arrives in my in box. a delete trash can icon would be nice to have on that pop up

I have installed Thunderbird in an attempt to escape from BT's email setup. Unfortunately, the Thunderbird I seem to have I am finding very difficult to use. Things like what to view, and how to arrange the various elements to view. Also, I seem to have a long list of messages in the inbox etc which takes a very long to time to load. I'm just wondering whether to uninstall it, and try again. Advice on setting it up would be welcomed. But please note I am not very computer-literate so, if it is a product intended for experienced users, should I try a 'Plan B'...?

I've been happily using Thunderbird for a long time and now have version 115.12.2 (64-bit) on my MacBook Pro. It's old (10.14.6) but it's all I need. Until yesterday, TB worked fine. Suddenly, business emails stopped saving to my "Sent" Folder. I deleted a number of old emails and compacted the folder but that has not helped. I don't have the problem with other TB accounts. I checked the account settings:

               Place a copy in "Sent" Folder on (my account) – as it always was.

I also checked "Show confirmation dialog when messages are saved". Despite seeing that, the message is NOT saved.

Are my sent mails from the last 24 hours saved anywhere? If so, how can I retrieve them?. How can I make sure they are saved in my "Sent" folder? Thanks so much!

Dear Sir or Madame,

I posted this issue already earlier (https://support.mozilla.org/en-US/questions/1428881?utm_campaign=questions-reply&utm_source=notification&utm_medium=email#answer-1613810), but it still persists.

Zited from my earlier report: The usual process that happened when deleting or separating attachments from e-mails was that a copy of the email without the attachment was produced by Thunderbird and the original email was deleted.

This is not longer working. When I delete an attachment, the original email containing the attachment is not deleted. So I have two versions of the email in my postbox, one with the attachment, the other without.

Probably I'm missing a setting?

Thunderbird version 115.3.3 (32-Bit)

Still happening with 115.12.2 (32-Bit)

Sincerely yours, Markus Piotrowski

I recently got a new PC with WINDOWS 10 and loaded Thunderbird to pick up my email. However, now the mail client keeps making new profile folders, which I keep trying to delete. I am up to 6 now. THey are all in my deleted section of my Local Folders. How do I remove them for good. I thought all deleted items were supposed to disappear once you close the program, no? I never had to even deal with Profile Folders on my older PC. Thank oyu for your assistance.

Hi This morning when I tried to send an email I got a message there was no disk space & so couldn't save copy to sent (I have 848 GB free on HD)

I tried to copy some old sent emails to a folder I've used in the past (old sent) & TB crashed. When I restarted it, many of my subfolders were missing. They are all still showing in Local folders in profile. I deleted all msf files & restarted TB. Nothing.

How can I restore these folders? Hopefully that's possible! Thanks

I love Thunderbird and it has replaced Outlook (classic) for me, but there's one feature I miss, AutoArchive.

In Outlook (classic), emails older than x days can be automatically moved out of the server folders and into local folders, freeing up server storage space and negating the need to pay for additional cloud storage.

Thunderbird has the ability to select a group of messages in any folder and right-click > Archive (move) them to the matching Local Folder: perfect! But manually selecting multiple messages older than x days in multiple IMAP folders and selecting "Archive" is a chore too far.

Thunderbird should natively have the ability to (optionally) iterate across all IMAP folders and "Archive" any message older than x days, according to the Message Archives setting in Account Settings > Copies & Folders. The Disk Space setting in Account Settings could be an ideal place to add an "Archive messages more than x days old" option, since it already has a "Delete messages more than x days old" option.

Note: I know about the AutoarchiveReloaded add-on, but for something as important as shifting emails around with the possible breakage that could occur, and the possibility of the add-on being discontinued, native support would be very much welcome.

Another note: this has of course been raised on bugzilla,[1] but it's a 15 year old bug and seemingly unlikely to come to fruition.

[1] https://bugzilla.mozilla.org/show_bug.cgi?id=536169

Using Thunderbird version 115.11.0 (64-bit) with Windows 7 OS and THREADING TURNED OFF.

When I receive a second reply to an email I've sent via one of my email service providers that uses an outlook365 server, my thunderbird view hides it beneath the first reply unless I manually intervene by clicking on the "greater than" sign associated with the first reply. When I do click on the first reply the greater than sign spins clockwise 90 degrees and the second reply appears below the first as if it were in a subdirectory.

The above behaviour is very inconvenient because I am prone to missing the second reply and have trouble anticipating its existence. Admittedly the unread second reply does change the first reply's text property to "bold" but I much prefer to see the new message without having to manually click on everything bold to check.

Another email service provider I use also has an Outlook365 server but second replies to emails are not hidden in its associated thunderbird inbox?

Can anything be done in thunderbird to stop this "feature" or is it absolutely fixed by service providers?

We had a storm and now email doesn't work. We are a business and have to have email. I've went in and changed the Mozilla password and when go back to email it won't accept it. Emails aren't coming through. Can't sign in. What do I do?

I have over 35 email accounts, which I use Thunderbird to collect. Love Thunderbird for well over 2 decades!

I am wanting to have 2 of my email addresses to be downloaded before all the others. I have indeed successfully "moved" these 2 accounts to the top of my account list (Shift and mouse). However they are not downloaded in the order of the account list.

How do I accomplish this? Is it possible?

I created a ticket, and it auto-responded to run this by the Volunteer Community. I really want this to be handled by support, but welcome anyone to give me a solid answer.

Mark Robbins

Right now I'm using 3 different email accounts on Thunderbird. All 3 of them are Office365 accounts. For some reason, 1 of the 3 accounts is prompted at least once a day, sometimes twice a day, to enter my password on the Office365 website popup that is used with the OAuth2 authentication process. It's very irritating, all 3 accounts are Microsoft Office business accounts. What would be the reason why it needs to authenticate daily? Is there no password manager to do this automatically once it's been entered once? Can I pick a different authentication method? What is the correct change to make so I don't have to keep typing in my password every day?

"Unable to write the email to the mailbox. Make sure the fle system allows you write privileges, and you have enough disk space to copy the mailbox."

After years of working fine, this message has started appearing whenever TB tries to retrieve messages. I've checked that there's enough space (there's many GB free). I've checked the authorisations of the email folders, they're all fine (Full Control in all cases). I found an answer in a forum suggesting that a rogue antivirus might be the problem, but I'm only using MS Defender.

In desperation I removed the entire Roaming/Thunderbird folder, uninstalled TB, reinstalled it (version 115.12.2), created a new profile for my email address (it's a Yahoo email address, and I can retrieve the emails directly through the Yahoo Mail website with no problems). But I'm still getting the same error message. TB tries to retrieve the messages, it says 'Retrieving message 1 of 105' for several minutes, then the error message popup, and nothing appears in the Inbox. (105 is all the incoming messages as of now since this started happening).

I'm completely stuck. Any suggestions?

When I wanted to add a new subfolder to an existing folder, I think I used to right click on the folder under which I wanted to create a new subfolder. A menu would pop up with a line about adding a new subfolder. Now that option no longer appears. What happened, and how can I fix this, or how do I add a subfolder now?

Michael Tad Parks+, SSC 70741.2122@compuserve.com

Hi There,

After installing the new thunderbird release 15.12.2, i started getting alot of duplicates. i was messing around in the thunderbird layout etc There was a report about a damaged mailbox, but not the inbox. i think i was behind on compacting. Then i realized most of inbox was gone !

i tried the repair suggested in Thunderbird properties on the message summary index file .msf when i first noticed problem, i made copies both inbox and .msf currently:

Inbox itself is ~2Gb, but  Inbox.msf file size is 0 

i have copy of the Inbox, but copy of Inbox.msf is gone...

i reinstalled the latest thunderbird. but didn't help.

I took the advice of @Toad-Hall and uninstalled the flatpak version of thunderbird, then installed the version available as an rpm via dnf/yum and that worked. Life is good.

i'm running windows on a bootcamped macbook pro, windows 10 home. did i install correct version ? any other ideas ?

i have used thunderbird for many years and appreciate you'all for keeping it going !

thanks, Kathy

I don't know my password to open my email, how do I find it? I have had my email account for years never needed to sign in and now I'm out, I need help I have a lot of important messages waiting.