On 2025-05-25 at 10:15:37 UTC-0400 (Sun, 25 May 2025 14:15:37 +0000)
Slavko via Exim-users <li...@slavino.sk>
is rumored to have said:

> It is hard, what is better, use weak TLS or plain text?

Weak TLS, indubitably.


> From my point of
> view, first: it is not my problem, it is their decision (to use weak TLS).
> Second, weak TLS is IMO worse than plain text, as it provides false feel
> of protection and i personaly prefer to avoid false feels...

But there are no weaknesses in TLS v1.0 or v1.1 relative to v1.2 and 1.3 that 
are relevant to SMTP sessions.

Sending a message with TLSv1 or even SSLv3 prevents trivial exploitation of 
intercepted traffic. With plaintext, *anyone* who can intercept the traffic can 
read the message. With *ANY* encryption the bar for exploitation is raised to 
attackers who can decrypt the traffic, which is a very difficult task if a good 
ciphersuite is negotiated.  With SSLv3 or TLSv1, that is further limited to 
people who possess as-yet-unknown decryption tricks. Just as it is with TLSv1.2 
and TLSv1.3. There is no false feeling of security, only a real one.

-- 
Bill Cole

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