Re: check_sender_access actions

From: Jason Pruim (no email)
Date: Tue Apr 03 2007 - 09:14:31 EDT

  • Next message: Martin Schmitt: "Re: Different TLS Certificate for each IP"

    On Apr 3, 2007, at 8:56 AM, Otavio Exel wrote:

    >> Otavio Exel wrote:
    >>> I'm trying to replicate a feature found in Exim-3 that allows relay
    >>> based on sender address(*);
    >>> (*) I am aware this can be easily abused!
    > mouss wrote:
    > hi mouss!
    >> what real problem are you trying to solve?
    > I have 2 users (sales guys) who go out with their notebooks, plug into
    > whatever DHCP is available and want to send mail w/o reconfiguring the
    > "outgoing smtp server" in their MUAs;
    > it works; of course I have to keep an eye in the logs (in case some
    > spammer find out their addresses);
    >> there may be safer ways to implement it.
    > I guess some kind of auth would be great! I'm sure postfix (perhaps
    > even
    > exim) can do that; but I'd rather replicate the old server's (exim)
    > behaviour, push the new server (postfix) into production and after
    > that
    > implement a safer way;
    > of course if postfix can't do it (which is a plus IMHO) I would change
    > my plans and "do it right" before it goes into production;

    This may be a little off topic for this particular list, but I think
    it's related enough, one thing you could do since many ISP's are
    blocking port 25 for anything other then their mail server, is set up
    a VPN. The sales guys would hook up to what ever DHCP they have
    access to, VPN into your server and then send e-mail just as they
    would normally. I have set this up at my office because the owner's
    ISP blocks port 25 and they will NOT unblock it for her... Idiots :P
    (Sorry, personal feelings got in the way)

    Jason Pruim
    Production & Technology Manager
    MQC Specialist (2005 certified)
    3251 132nd Ave
    Holland MI 49424
    "America will never be destroyed from the outside. If we falter and lose
    our freedoms, it will be because we destroyed ourselves."
      -Abraham Lincoln

  • Next message: Martin Schmitt: "Re: Different TLS Certificate for each IP"

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