[SMTP] tchncs.de (Mon, 10 May 2021 23:55:59 +0000)

t1.tchncs.de - 2a02:c207:3002:796::1 : 25

Error during analysis: TLS seems not supported on this server

t1.tchncs.de - 173.212.237.230 : 25

Error during analysis: TLS seems not supported on this server