Vincenzo Gianferrari Pini ha scritto:
> Ok, if we want to connect to a gateway server.
> 
> I was instead talking about connecting to the final SMTP receiver based
> on the MX records, not to the gateway. This way RemoteDelivery will
> *always* use TLS and connect on port 465, isn't it? What happens if the
> peer server works only on plain port 25 without TLS? There should be a
> fallback behaviour, that I think is not yet implemented.

Hi Vincenzo,

I think that if we do SMTP delivery then we MUST NEVER use port 465 as
the port to be used with MX servers is 25.

The user was asking for a solution for "ISP gateways", so I hope the
proposed attributes will make the trick!

The only things we can do on standard SMTP delivery is enabling STARTTLS
support: I think this can be done by using
<mail.smtp.starttls.enable>true</mail.smtp.starttls.enable>.
This way everytime the server will announce STARTTLS support javamail
SHOULD (never tried) try to encrypt the conversation.

Stefano


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