Should I be worried about these errors in the mail log?

[AartJansen]

I thought I'd wait and see if it resolves itself a few hours later it hadn't and I rebooted it. The errors haven't come back.
I didn't notice any issues with the server and only came across them in the log by chance.

Any idea what was going on ?

[Kubernetes]

I think this is the same error I already reported here:
https://forum.cloudron.io/topic/10461/errors-in-haraka-with-cloudron-7-6-1?_=1703064326207

It is fixed in the latest version of Cloudron

[girish]

This is fixed in the latest release 7.6.2