Re: Corner cases in SSL_shutdown.

[Bill Cole]

On 2 Feb 2021, at 9:49, Leo Bicknell wrote:

Perhaps Postfix does not support returning to clear text from a 
STARTTLS
session and doing futher protocol operations.  I have not looked.  But 
if it
does, I believe the proper shutdown behavior is a MUST.

No SMTP server should ever support downgrade of an established STARTTLS 
session to clear text.

--
Bill Cole
b...@scconsult.com or billc...@apache.org
(AKA @grumpybozo and many *@billmail.scconsult.com addresses)
Not Currently Available For Hire