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HI All,

Just recently I started getting this message in the warning log:

Failed STARTTLS in SMTP connection with
Failed STARTTLS in SMTP connection with

Does anyone know what it means and its cause.

Pavel Dobry (Kerio)

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STARTTLS command in SMTP session is blocked by some firewall with protocol inspection of SMTP protocol:

telnet 25

220 MMSSERVER.CIRCLES.COM Tumbleweed MMS SMTP Relay Service ready
454 TLS denied by firewall
221 MMSSERVER.CIRCLES.COM Service closing connection

Thus it is not possible to establish secured SMTP session to the server.

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what is the suggestion?
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