On Fri, Apr 11, 2025 at 05:08:39PM +, Jeff Kletsky via Postfix-users wrote:
> 2025 Apr 11 00:27:36.696 -07:00 mx1 warning: postfix/relay/smtp[69584]:
> warning: smtp_tls_wrappermode requires "smtp_tls_security_level = encrypt"
> (or stronger)
The warning is clear enough, to use "wrapper mode
On 2025-04-11 at 13:08:39 UTC-0400 (Fri, 11 Apr 2025 17:08:39 +)
Jeff Kletsky via Postfix-users
is rumored to have said:
> We recently changed hosting for our perimeter MTAs and also switched to
> SMTPS, based recent standards-track RFCs.
The only Standards Track RFC that recommends SMTPS i
