got a listener on 993

[Jean-Daniel]

> Le 14 avr. 2020 à 18:57, A. Schulze <sca at andreasschulze.de> a écrit :
> 
> 
> 
> Am 13.04.20 um 20:52 schrieb David Mehler:
>> Hello,
>> 
>> Before I get in to my question is ssl on 993 or starttls on 143 better
>> from a security perspective?
> 
> implicit TLS is recommended: https://tools.ietf.org/html/rfc8314#section-3

One rational for this is to make sure broken clients don’t send  clear text credential on port 143, even if STARTTLS is required.

So from a security perspective, you can consider TLS on port 943 a better solution.