BIRD mailing list issue - root cause found: BIRD MTA fails to resend after being greylisted

[Christoph]

Hi,

the root cause for the mailing list issues have been found.

trubka.network.cz gets greylisted by never tries to delivery the emails
again.

{{ Oct  4 13:17:46 mx2 postgrey[1652]: action=greylist, reason=new,
client_name=trubka.network.cz, client_address=2001:1568:b:145::1

Could you look into your MTA configuration to resolve this issue?

thanks,
Christoph