Was there a problem with Outlook and encrypted passwords? Or the
password cache?
On 25.1.2019 11:43, Philip Nix Guru wrote:
Hello
Yes that's one of the reason I was wondering why encrypted password
was no longer supported for STARTTLS in the lastest dev version
Regards
-P
On 1/25/19 8:56 AM, Andrew Swartz wrote:
I would add the caveat that STARTTLS is only "probably safe".
Unfortunately, it suffers from a critical error in the very concept
of going from an plaintext session to a TLS session, resulting in an
unfixable (as far as I know) vulnerability. A man-in-the-middle can
inject text into the server response to tell the client that STARTTLS
is not available and that the conversation should therefore continue
in plaintext. I've read that several ISP's have been caught using
this vulnerability to scan people's outgoing email. That means PLAIN
or LOGIN type submission passwords can be seen.
This is why the 2018 RFC (https://tools.ietf.org/html/rfc8314) has
strongly recommended abandoning STARTTLS on port 587 and using
dedicated TLS on port 465 for mail submission.
-Andy
On 1/24/2019 9:30 PM, Eric Broch wrote:
The password is not encrypted (Normal) but is sent over an encrypted
connection, it's safe.
On 1/24/2019 5:39 PM, Philip Nix Guru wrote:
Hello
I was testing the dev version (an upgrade over the stable version)
and came through that annoying problem
if I have to advise all users to change their config :
Sending of the message failed.
The Outgoing server (SMTP) xxxxxx does not seem to support
encrypted passwords. If you just set up the account, try changing
the 'Authentication method' in 'Account settings | Outgoing server
(SMTP)' to 'Normal password'.
All the users having a starttls config in their mail client had to
change from encrypted to normal
which of course brought the question "oh it is not safe anymore ..."
Regards
-Philip
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