John Levine wrote:
Ouch! Someone needs a refresher :)
Someone might benefit from rereading RFC 6409, particularly section
3.3.
Port 587 should ALWAYS be using AUTH, full email address, with TLS
enabled.. Then you have a MUA-MTA connection (submission)
Nope. For one
require credentials if you're submitting email to local users, but will
require it for relay...
Maybe I'm misreading something, but doesn't that turn it into a MTA port
instead of an MSA port? That would seem to totally defeat the purpose of
using a MSA port at all, no?
Not necessarily.
On 15-08-02 03:46 PM, John Levine wrote:
require credentials if you're submitting email to local users, but will
require it for relay...
Maybe I'm misreading something, but doesn't that turn it into a MTA port
instead of an MSA port? That would seem to totally defeat the purpose of
using a
Ouch! Someone needs a refresher :)
Someone might benefit from rereading RFC 6409, particularly section
3.3.
Port 587 should ALWAYS be using AUTH, full email address, with TLS
enabled.. Then you have a MUA-MTA connection (submission)
Nope. For one thing, it's an MSA, not an MTA. For another,
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Robert Mueller wrote:
Are you absolutely sure this is happening on port 587?
Yes.
Is there anything else logged before or after this from the same IP
(maybe get a tcpdump)? Does it actually attempt plaintext + STARTTLS
upgrade after the direct
A client with a new iPhone (not sure what model), attempts to setup
imap/smtp using starttls. As part of the setup, the iPhone apparently
probes the smtp server on port 587 with an SSL handshake:
Jul 29 21:31:34 ns1 sendmail[20641]: t6U4VYQL020641: rejecting commands
from
Franck Martin wrote:
465 has been deprecated, IANA has got this port registered for another
protocol than SMTPS.
I stand corrected (and learned something new today)
However recently at IETF, as part of Universal TLS in Application
(UTA), it was discussed that using STARTTLS is may be not as
On 2015-07-30 18:33, Robert Mueller wrote:
A client with a new iPhone (not sure what model), attempts to setup
imap/smtp using starttls. As part of the setup, the iPhone apparently
probes the smtp server on port 587 with an SSL handshake:
Jul 29 21:31:34 ns1 sendmail[20641]: t6U4VYQL020641:
