On 11/05/2010 03:41 PM, Alejandro Facultad wrote:
Thanks but, is it right if coming from Internet I enter to your mail
server and after that I send a message from your mail account to your
project manager's mail account telling he's an asshole ???
I now SPF is ideal for avoid this behavior, but I think the first
example is an "open relay" feature.
What about smtp auth?
Thanks a lot.
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*De:* Noel Jones <njo...@megan.vbhcs.org>
*Para:* postfix-users@postfix.org
*Enviado:* viernes, 5 de noviembre, 2010 16:32:01
*Asunto:* Re: Open relay question
On 11/5/2010 2:28 PM, Alejandro Facultad wrote:
> Dear, I'm in Internet and testing if my mail server is an Open
> Relay. So I execute:
>
> telnet mail.mycompany.com 25
>
> After that I do:
>
> mail from: us...@mycompany.com <mailto:us...@mycompany.com>
> OK
> rcpt to: us...@mycompany.com <mailto:us...@mycompany.com>
> OK
> data
> This is a test !!!
> .
> QUEUED
>
> The mail from user1 to user2 (both from my company) was sent
> OK !!!
>
> Is this behavior normal or is it an open relay ??? Can I sent
> a message from one local user to another local user, being
> that I come from Internet and not from LAN ???
>
> Thanks a lot
>
> A.F.
>
>
Yes, that's normal. "Open relay" means the RCPT can be an
unrelated domain eg. @hotmail.com.
