Mailing List CGatePro@mail.stalker.com Message #92257
From: James Moe <jimoe@sohnen-moe.com>
Subject: Re: port 587 and authentication
Date: Thu, 16 Aug 2007 10:17:21 -0700
To: CommuniGate Pro Discussions <CGatePro@mail.stalker.com>
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Karl Zander wrote:
>>
>> So, in short - you don't need to configure SMTP Auth at
>>all. Just configure these SMTP Listener ports:
>>
>> Port     Init SSL/TLS
>> ----------------------
>> 25       off
>> 465      on
>> 587      off
>>
>> And you're ready to go...
>
> I'm confused....for a domain, the Domain Settings offer an
> option to "Force SMTP AUTH for:" for nobody, non-clients,
> clients, everybody.  Is that not forcing the use of SMTP
> AUTH if non-clients, clients or everybody is selected?
>
  You are confusing authentication with encryption. The above
configuration decides if a port expects an encrypted session or simply
offers it as an option.
  SMTP AUTH is requiring the client to offer a username and password to
authenticate itself to the server. Without authentication your server is
an open relay.

- --
jimoe (at) sohnen-moe (dot) com
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