tls "i/o on hungup channel"

Hi,

I am getting some hacker/spammer banging on my ssmtpd bort (no surprise) but tlssrv is reporting
"i/o on hungup channel", and I am not clear what this implies.

Is it that the spammer has given up and dropped the connection but I am still trying to talk to them?

I would add some debug but debugging devtls is not so straightforward.

Thanks,

-Steve