Bug 514757

Summary:	Error trying to sync an IMAP folder.
Product:	[Applications] kmail2	Reporter:	Joshua J. Kugler <joshua>
Component:	misc	Assignee:	kdepim bugs <pim-bugs-null>
Status:	REPORTED ---
Severity:	normal
Priority:	NOR
Version First Reported In:	6.6.1
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Joshua J. Kugler 2026-01-17 19:37:22 UTC

SUMMARY
IMAP folder does not sync, and return an error in the log

STEPS TO REPRODUCE
1. Try to sync IMAP SPAM folder in my dreamhost account.

OBSERVED RESULT
Does not sync.

EXPECTED RESULT
Folder syncs.

SOFTWARE/OS VERSIONS
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version: 6.10.1
Kernel Version: 6.16.3-76061603-generic (64-bit)
Graphics Platform: X11
Processors: 32 × Intel® Core™ i9-14900HX
Memory: 64 GiB of RAM (62.6 GiB usable)
Graphics Processor 1: Intel® Graphics
Graphics Processor 2: NVIDIA GeForce RTX 4060 Laptop GPU


ADDITIONAL INFORMATION
I am seeing this error while trying to sync an IMAP folder. The INBOX folder works fine, but the Spam folder (a sub-folder of INBOX) is throwing this error in the Akonadi logs:
org.kde.pim.imapresource: Fetch job failed "Fetch failed, server replied: A000010 BAD Error in IMAP command FETCH: Invalid messageset ( 0.001 + 0.000 secs ) . "
org.kde.pim.imapresource: ""
org.kde.pim.imapresource: Fetch job failed "Fetch failed, server replied: A000015 BAD Error in IMAP command FETCH: Invalid messageset ( 0.001 + 0.000 secs ) . "
org.kde.pim.imapresource: ""

By the way, this worked until about seven days ago.

The webmail interface for the host (webmail.dreamhost.com) works correctly.

I started getting this on two accounts. The said accounts work fine in Thunderbird (the spam folder syncs fine).

Other IMAP accounts (non-dreamhost) are working fine.