Hi,
Thanks for your input! The system time is correct, and all other entries have the correct timestamps. It’s only the four watchdog entries that are affected and appear before all others.

I’ve also found some additional information in the container id json.log file:
{"log":"2025-04-06 10:02:29 #39(controller) \u003c8eb792\u003e; csession; rspamd_task_write_log: id: \u003cundef\u003e, (default: F (soft reject): [0.00/9999.00] [GREYLIST(0.00){greylisted;Mon, 06 May 2120 20:48:34 GMT;too early;}]), len: 52, time: 0.763ms, dns req: 0, digest: \u003c593fbedc45b4499d86efc2599f6a4002\u003e, mime_rcpts: \u003cnull@localhost\u003e, forced: soft reject \"Greylisted, please try again later\"; score=nan (set by greylist)\n","stream":"stderr","time":"2025-04-06T08:02:29.559081483Z"}
I’m particularly interested in this part:
greylisted;Mon, 06 May 2120 20:48:34 GMT;too early;
Thanks for any ideas or suggestions!
Jo