t/s expired cert error

[Yassine Chaouche]

Le 3/2/21 à 9:02 PM, Matthias Kneer a écrit :
>> # echo | openssl s_client -connect emu.sbt.net.au:110 2>/dev/null |
>> openssl x509 -noout
>>  -enddate
>> unable to load certificate
>> 139830305752976:error:0906D06C:PEM routines:PEM_read_bio:no start
>> line:pem_lib.c:707:Expecting: TRUSTED CERTIFICATE
>>
>
> Your test does not use starttls on port 110, could you retry like this?:
> echo | openssl s_client -connect emu.sbt.net.au:110 -starttls pop3 
> 2>/dev/null | openssl x509 -noout -enddate
>
> Is the clients time / date properly configured? For me all your 
> pop3s/imaps/smtps ports answer fine.
I am intrigued about the function of echo in that command line ?

-- Yassine.