no more copy/paste. Got it.
On 26/09/2025 4:12 am, Wietse Venema via Postfix-users wrote:
Marc Lucke via Postfix-users:
fwiw this is what gpt-5 said:
Oh great, now we have LLM feedback with incorrect examples (those
openssl command lines do not show the EHLO server response that it
is trying
fwiw this is what gpt-5 said:
Short version: don’t assume your 587/submission is “good.” Require
STARTTLS there and enable SASL *only after* TLS. Keep 465/smtps around
for clients (like some appliances) that only do implicit-TLS. The “hex
garbage” in logs is just Postfix showing a TLS/SSH/RDP
+1 thank you. I have enjoyed Postfix for all these years & paid zero
for it. Seems wrong somehow, but I am very grateful.
- Marc
On 15/12/2023 12:20 am, Wietse Venema via Postfix-users wrote:
As a few on this list may recall, it is 25 years ago today that the
"IBM secure mailer" had its publi
On 15/09/2023 1:38 am, Wietse Venema via Postfix-users wrote:
Marc Lucke via Postfix-users:
On 15/09/2023 12:08 am, Wietse Venema via Postfix-users wrote:
Marc Lucke via Postfix-users:
re:
https://techcommunity.microsoft.com/t5/exchange-team-blog/updated-requirements-for-smtp-relay-through
On 15/09/2023 12:08 am, Wietse Venema via Postfix-users wrote:
Marc Lucke via Postfix-users:
re:
https://techcommunity.microsoft.com/t5/exchange-team-blog/updated-requirements-for-smtp-relay-through-exchange-online/ba-p/3851357
That text is about relaying email: you originate a message, and
re:
https://techcommunity.microsoft.com/t5/exchange-team-blog/updated-requirements-for-smtp-relay-through-exchange-online/ba-p/3851357
Let's say I send an email. I use:
> mail from:
and in the data (body)
> From: Professional Legit Person
Looking at headers from Microsoft, they track
