[Mailman] talk-cz subscribe problem

[Tom Ka]

Hello,

I got a notification, that subscribing to talk-cz mail list does not
work. No error is produced when using form on
https://lists.openstreetmap.org/listinfo/talk-cz but the user is not
subscribed. No mail is delivered neither to user or list moderators.

Could you please check the status and/or logs?

Emails that were tried are: mirek at rodina-sucha.cz (later added via
admin interface) and kasparek at fit.vutbr.cz (just for test, secondary
email of one of mail moderators).

Thank you in advance
tom.k/tkk