[Vmail-discuss] RELAY question(s)

markus markus@nsl.it
Mon, 22 Jul 2002 20:51:43 +0200


Wayne Pascoe wrote:

>markus <markus@nsl.it> writes:
>
>  
>
>>Greetings,
>>
>>does anyone know how to enable pop before smtp to allow costumers to
>>send mail trough the mail server?
>>
>>Or other ways to let my costumers use my mail server even if they dont
>>have static ips/hostnames,
>>
>>I saw in tpop3d`s README.POP-before-SMTP:
>>"First, a caveat: I do not use POP-before-SMTP relaying, and I think
>>that it's a ghastly hack."
>>
>>    
>>
>
>Your pop daemon has nothing at all to do with sending mail. You need
>to look at facilities provided by exim for this.
>
well, thats not true at all, since if you have pop before smtp, then you 
authenticate first trough the pop dameon, then you can send mail

>
>You have two possible solutions that I know of. Firstly you could
>allow relaying by sender address. I can't remember the exim config
>definition for this, but it simply checks the from address and decides
>to relay or not based on that. This has a downside in that anyone can
>pose as a user and use you for a spam relay.
>
>Your other option is SMTP auth. I don't know too much about this, but
>I'm sure that exim supports it.
>
>Hope those pointers help you find a starting point. Regards,
>
>  
>
well, thank you, tpop3d got the pop over smtp feature, i need to test it 
over, and i think smtp auth trough exim is not that easy
more comments ideas?
-cheerio