Have you checked the folders are correctly mapped under settings > account > folders?

Have you tried adding the account by entering your email address and credentials instead of using the QR code. Might be worth trying and seeing if the issue reproduces.

What versions of the mobile app are you using and who is your email provider? Is the account presenting the issue connecting via Imap or Pop3?

Thank you for your response Platform34.

Under settings > account > folders there are definitely a list of options (choose sent folder, drafts folder, etc). However, each of the options has nothing to choose. There are no folders available in the drop down menus.

I originally added the account from scratch, without an export / import, or a QR code. That had the same issue, so I then tried the import and QR options later. It's the same issue on all 3 methods. But, ONLY for this email account.

The email provider is Zoho.

I am on the very latest build from the FDriod Store (currently Version 13)

Also worth noting, the other email accounts I have, are all from the same provider. Zoho. This is the only one doing this.

I have logged into the webmail for zoho, and can find no folders unticked for syncing etc. They are fine, as I say, on the same software, on my tablet, but on the phone, it's this one account that only has an outbox.

Totally stumped

Thanks for the information.

Could you have a look at your account settings on Zoho's web portal. Settings > mail accounts > folder settings (beneath imap)

Check the various folders you want to see in Thunderbird are enabled in Zoho for Imap access.

See screen shots attached.

Thanks again, I do appreciate that. Yes, they are all ticked. See screenshot. All apps including Thunderbird linux desktop, and thunderbird / k9 mail on the tablet work. It's JUST on the phone. Totally stumped.

Yeah, it's strange.

Does the troubled account connect to the server successfully when you click through the incoming server settings pages?

Have you tried refreshing the accounts folder list from manage folders > three dot menu?

Does the issue replicate if you use an earlier version of the app?

It would be useful to enable debug logging from the general settings > debugging page. Try the first 2 suggestions, along with a manual sync while logging is enabled. Select export logs afterwards from the debugging> three dot menu.

Have a look at the log file and see if it shows any error messages. You may need to review and redact any sensitive information if you'd like to share it.

You might also consider posting the issue over on github where expert hands are live :) https://github.com/thunderbird/thunderbird-android/issues

Thank you again, truly.

Checking:

• Yes, in the settings for that account, I enter credentials, and it's successful
• I have tried to refresh folders, but only Outbox shows.
• I will try an earlier version soon, to confirm. Update to come.
• Checking logs, there is a LOT of sensitive info in there. Full emails, and more. It's over 1700 lines long, and a little tricky to trim out.

I searched for ERROR, and found:

`10-30 08:19:51.739 12471 12902 E chromium: [1030/081951.739082:ERROR:android_webview/browser/variations/variations_seed_loader.cc:39] Seed missing signature.`

Searching for FAIL I found:

10-30 08:17:35.614 12471 12471 I ImeTracker: net.thunderbird.android:55dd0cb7: onFailed at PHASE_CLIENT_VIEW_SERVED

10-30 08:19:39.721 12471 12530 W System.err: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".

10-30 08:19:51.691 12471 12471 W derbird.android: Failed to find entry 'classes.dex': Entry not found

10-30 08:19:51.920 12471 12471 I ImeTracker: net.thunderbird.android:f42beabc: onFailed at PHASE_CLIENT_VIEW_SERVED

10-30 08:20:10.101 12471 12471 I ImeTracker: net.thunderbird.android:e7b2cdb2: onFailed at PHASE_CLIENT_VIEW_SERVED

I'm nor sure if I can make sense of any of that unfortunately.

BUT, searching for IMAP, I found the following error. It might have a clue? I see it says `Could not refresh folder list for account a0bf0b52-d29c-43d6-a0da-cd69cb651731`

10-30 08:19:39.671 12471 12530 I MessagingController: Starting mail check 10-30 08:19:39.671 12471 12530 I MessagingController: Synchronizing account a0bf0b52-d29c-43d6-a0da-cd69cb651731 10-30 08:19:39.671 12471 12530 D MessagingController: Last folder list refresh @ Thu Jan 01 10:00:00 AEST 1970. Refreshing now… 10-30 08:19:39.721 12471 12530 D RealImapConnection: Connecting to imap.zoho.eu as imap.zoho.eu/185.230.212.25 10-30 08:19:39.721 12471 12530 W System.err: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". 10-30 08:19:39.722 12471 12530 W System.err: SLF4J: Defaulting to no-operation (NOP) logger implementation 10-30 08:19:39.722 12471 12530 W System.err: SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. 10-30 08:19:40.884 12471 12530 I RealImapConnection: Did not get capabilities in banner, requesting CAPABILITY for conn217060089 10-30 08:19:41.233 12471 12530 D RealImapConnection: Saving [NAMESPACE, LIST-STATUS, UNSELECT, SASL-IR, WITHIN, ACL, XLIST, UIDPLUS, CHILDREN, AUTH=PLAIN, CONDSTORE, MOVE, IMAP4REV1, IDLE, ESEARCH, LITERAL-, LIST-EXTENDED, ID] capabilities for conn217060089 10-30 08:19:42.050 12471 12530 D RealImapConnection: Saving [NAMESPACE, LIST-STATUS, UNSELECT, SASL-IR, WITHIN, ACL, XLIST, UIDPLUS, CHILDREN, AUTH=PLAIN, CONDSTORE, MOVE, IMAP4REV1, IDLE, ESEARCH, LITERAL-, LIST-EXTENDED, ID] capabilities for conn217060089 10-30 08:19:42.459 12471 12530 I RealImapConnection: pathPrefix is unset and server has NAMESPACE capability 10-30 08:19:42.499 12471 12471 I VRI[MessageList]@5245ed: call setFrameRateCategory for touch hint category=no preference, reason=boost timeout, vri=VRI[MessageList]@5245ed 10-30 08:19:42.869 12471 12530 D RealImapConnection: Got path and separator '/' 10-30 08:19:43.241 12471 12530 E MessagingController: Could not refresh folder list for account a0bf0b52-d29c-43d6-a0da-cd69cb651731 10-30 08:19:43.241 12471 12530 E MessagingController: net.thunderbird.core.common.exception.MessagingException: Unable to get folder list. 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.RealImapStore.getFolders(RealImapStore.kt:112) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.backend.imap.CommandRefreshFolderList.refreshFolderList(CommandRefreshFolderList.kt:28) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.backend.imap.ImapBackend.refreshFolderList(ImapBackend.kt:53) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.controller.MessagingController.refreshFolderListSynchronous(MessagingController.java:421) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.controller.MessagingController.refreshFolderListIfStale(MessagingController.java:615) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.controller.MessagingController.checkMailForAccount(MessagingController.java:2393) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.controller.MessagingController.-$$Nest$mcheckMailForAccount(MessagingController.java:0) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.controller.MessagingController$9.run(MessagingController.java:2358) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.controller.MessagingController.runInBackground(MessagingController.java:244) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.controller.MessagingController.-$$Nest$mrunInBackground(MessagingController.java:0) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.controller.MessagingController$1.run(MessagingController.java:184) 10-30 08:19:43.241 12471 12530 E MessagingController: at java.lang.Thread.run(Thread.java:1119) 10-30 08:19:43.241 12471 12530 E MessagingController: Caused by: java.io.IOException: Expected 000d ( ) but got 002f (/) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.ImapResponseParser.expect(ImapResponseParser.java:491) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.ImapResponseParser.parseListResponse(ImapResponseParser.java:215) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.ImapResponseParser.readTokens(ImapResponseParser.java:146) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.ImapResponseParser.readUntaggedResponse(ImapResponseParser.java:78) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.ImapResponseParser.readResponse(ImapResponseParser.java:49) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.ImapResponseParser.readResponse(ImapResponseParser.java:37) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.ImapResponseParser.readStatusResponse(ImapResponseParser.java:95) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.RealImapConnection.executeSimpleCommand(RealImapConnection.kt:747) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.RealImapConnection.executeSimpleCommand(RealImapConnection.kt:733) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.RealImapStore.listFolders(RealImapStore.kt:146) 10-30 08:19:43.241 12471 12530 E MessagingController: at com.fsck.k9.mail.store.imap.RealImapStore.getFolders(RealImapStore.kt:100) 10-30 08:19:43.241 12471 12530 E MessagingController: ... 11 more 10-30 08:19:43.244 12471 12530 I MessagingController: Command 'checkMail' completed

I'll try an uninstall, and find an earlier version in a bit, just about to start work unfortunately.

Thanks again!

Thanks for posting the log

The issue might be related to the imap folder prefix handling based on your log extracts below. Thunderbird v13 made some changes in this area.

Go to: Settings > account > fetching mail > incoming server.

• Auto-detect IMAP namespace
• Imap path prefix

Compare the settings on a working account versus the troubled on.

1. Make these settings match the good account and see if anything improves. 2. Try with "auto-detect IMAP namespace" enabled and "IMAP path" empty 3. Try with "auto-detect IMAP namespace" disabled and "IMAP path" value = / 4. Try with "auto-detect IMAP namespace" disabled and "IMAP path" empty

• 10-30 08:19:42.459 12471 12530 I RealImapConnection: pathPrefix is unset and server has NAMESPACE capability

• 10-30 08:19:42.869 12471 12530 D RealImapConnection: Got path and separator '/'

• 10-30 08:19:43.241 12471 12530 E MessagingController: Caused by: java.io.IOException: Expected 000d ( ) but got 002f (/)

That's awesome!!!

Try with "auto-detect IMAP namespace" disabled and "IMAP path" value = / Try with "auto-detect IMAP namespace" disabled and "IMAP path" empty

Those both worked.

I only have an inbox, and an outbox (no sent folder, etc). But, it works. I can read, and successfully send emails, and I guess that will do for now.

I can't thank you enough!