DMS will keep restarting until you create an email account.
You need at least one mail account to start Dovecot
docker logs -f openadmin_mailserver shows:
2026-03-24 15:41:52+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (120s left for account creation before shutdown)
2026-03-24 15:42:02+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (110s left for account creation before shutdown)
2026-03-24 15:42:12+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (100s left for account creation before shutdown)
2026-03-24 15:42:22+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (90s left for account creation before shutdown)
2026-03-24 15:42:32+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (80s left for account creation before shutdown)
2026-03-24 15:42:42+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (70s left for account creation before shutdown)
2026-03-24 15:42:52+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (60s left for account creation before shutdown)
2026-03-24 15:43:02+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (50s left for account creation before shutdown)
2026-03-24 15:43:12+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (40s left for account creation before shutdown)
2026-03-24 15:43:22+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (30s left for account creation before shutdown)
2026-03-24 15:43:32+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (20s left for account creation before shutdown)
2026-03-24 15:43:42+00:00 WARN start-mailserver.sh: You need at least one mail account to start Dovecot (10s left for account creation before shutdown)
2026-03-24 15:43:52+00:00 ERROR start-mailserver.sh: Failed to start accounts provisioning because no accounts were provided - Dovecot could not be started!
2026-03-24 15:43:52+00:00 ERROR start-mailserver.sh: Shutting down
2026-03-24 15:43:53,761 WARN exited: mailserver (exit status 1; not expected)
2026-03-24 15:43:53,763 WARN received SIGTERM indicating exit request
Solution: create an email account.