On Thu, 9 Jul 2009, Reinaldo de Carvalho wrote:
> On Thu, Jul 9, 2009 at 2:05 AM, Pascal
> Gienger<pascal.gien...@uni-konstanz.de> wrote:
>>
>> Imagine a Cyrus Box only accepting LMTP connections, no sendmail, no
>> Postfix, no other SMTP MTA running on it.
>> Then imagine a frontend smtp relay delivering directly via LMTP over TCP
>> to your Cyrus box. You can use lmtp auth then to prevent other machines
>> from directly delivering mails via lmtp.
>>
>> Pascal
>
> Set a firewall.
Cyrus (and lmtpd) support tcp-wrappers, so it is trivial to allow
connections from only your trusted MTA hosts. Still, using lmtp auth is
not a bad idea, and it is required in a Cyrus murder environment.
Andy
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