Thunderbird unable to copy successfuly sent emails to Sent folder or save Drafts after upgrade to 7.2.0 #649
Description
Describe the bug
I've made a large upgrade from 5.0.82 to 7.2.0, ironed out all the new read only and uid/gid changes. Sending/receiving and filtering is working as expected.
One issue is still present, Thunderbird is sending emails successfully but can not copy them to the Sent folder. Saving drafts is not working in Thunderbird either.
Roundcube has no issues in copying to Sent or saving to Drafts.
To Reproduce
I have observed this issue with the upgraded volumes as well as with a completely fresh instantiation where no old legacy email or filter files were present.
I have tried all kinds of workarounds, with unsubscribing resubscribing to folders. Removing and re initializing accounts. Thunderbird folder repair... issue is always the same.
Expected behavior
Consistently copy emails to Sent and be able to save to Drafts
Docker environment (please complete the following information):
71eda3c4d5e7 jeboehm/mailserver-mda:7.2.0 "/entrypoint.sh" About an hour ago Up About an hour (healthy) 2003-2004/tcp, 8080/tcp, 9090/tcp, 31024/tcp, 31587/tcp, 31990/tcp, 34190/tcp, 0.0.0.0:110->31110/tcp, 0.0.0.0:143->31143/tcp, 0.0.0.0:993->31993/tcp, 0.0.0.0:995->31995/tcp mailserver-mda-1
ea2f229aa418 jeboehm/mailserver-filter:7.2.0 "/entrypoint.sh" About an hour ago Up About an hour (healthy) 11332-11334/tcp mailserver-filter-1
b4972008c0e5 jeboehm/mailserver-web:7.2.0 "/entrypoint.sh" About an hour ago Up About an hour (healthy) 0.0.0.0:81->8080/tcp mailserver-web-1
a6f9314d384e jeboehm/mailserver-mta:7.2.0 "/entrypoint.sh" About an hour ago Up About an hour (healthy) 0.0.0.0:25->25/tcp, 0.0.0.0:587->587/tcp mailserver-mta-1
96f9ab469f8d mariadb:lts "docker-entrypoint.s…" About an hour ago Up About an hour 3306/tcp mailserver-db-1
dbb4dbe76500 jeboehm/mailserver-unbound:7.2.0 "/entrypoint.sh" About an hour ago Up About an hour (healthy) 5353/tcp, 5353/udp mailserver-unbound-1
486b0a143051 redis:8.4.0-alpine3.22 "docker-entrypoint.s…" 20 hours ago Up 20 hours 6379/tcp redis
docker version
Client: Docker Engine - Community
Version: 29.1.3
API version: 1.52
Go version: go1.25.5
Git commit: f52814d
Built: Fri Dec 12 14:49:42 2025
OS/Arch: linux/amd64
Context: default
Server: Docker Engine - Community
Engine:
Version: 29.1.3
API version: 1.52 (minimum version 1.44)
Go version: go1.25.5
Git commit: fbf3ed2
Built: Fri Dec 12 14:49:42 2025
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: v2.2.1
GitCommit: dea7da592f5d1d2b7755e3a161be07f43fad8f75
runc:
Version: 1.3.4
GitCommit: v1.3.4-0-gd6d73eb8
docker-init:
Version: 0.19.0
GitCommit: de40ad0
docker-compose is pretty much the one cloned from git except added tls and network for redis
Additional context
Add any other context about the problem here.