Re: [courier-users] Outbound esmtp / smarthost

Hi.

On Monday 16 June 2008, Jesper Langkjær wrote:
>> I've been using Default Smarthost for mail relaying, but now I got an
>> second domain and this domain should not use the Default Smarthost. Any way
>> that I can do this ?

>You want to send mail *TO* a specific domain to some special smarthost? That's
>the thing that esmtproutes is for.


>Or do you want to send mail with a specific sender's domain be relayed to some
>special smarthost? This would be tricky.

That was what I was thinking.

The problem is that we have to domains on this server and one of them use an extern spam/antivirus provider, and they scan both incoming and out going.
But the other one do not have such a service, nor would they pay for one.

/Jesper

regards, Bernd

--
<frank> can you help me install GTA3?
<knightmare> first, shut down all programs you aren't using
frank has quit IRC. (Quit)
<knightmare> ...
************************************************** ***********************
Denne e-mail er scannet for virus og spam
************************************************** ***********************

-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://sourceforge.net/services/buy/index.php
_______________________________________________
courier-users mailing list
courier-users@lists.sourceforge.net
Unsubscribe: https://lists.sourceforge.net/lists/.../courier-users

Jesper Langkjær writes:

>>Or do you want to send mail with a specific sender's domain be relayed to some
>>special smarthost? This would be tricky.
>
> That was what I was thinking.
>
> The problem is that we have to domains on this server and one of them use an extern spam/antivirus provider, and they scan both incoming and out going.
> But the other one do not have such a service, nor would they pay for one.

You do realize that anyone can put anything in their From: header, so if
someone finds out about this, they can easily work they way around this.

From: headers are untrusted, and should not be used for any kind of
policy-making decisions.



-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://sourceforge.net/services/buy/index.php
_______________________________________________
courier-users mailing list
courier-users@lists.sourceforge.net
Unsubscribe: https://lists.sourceforge.net/lists/.../courier-users

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)

iEYEABECAAYFAkhXm9AACgkQx9p3GYHlUOIUgACaAkv9WW4reB ywWcGVVjpIJTD8
cHEAniJZohdBSZPwM1LQwzDvBUMmCBLW
=n5yG
-----END PGP SIGNATURE-----

Hi.

On Tuesday 17 June 2008, Sam Varshavchik wrote:
> > The problem is that we have to domains on this server and one of them use
> > an extern spam/antivirus provider, and they scan both incoming and out
> > going. But the other one do not have such a service, nor would they pay
> > for one.

If anyone in this world needs outbound virus scanning, they should not be
given internet-access. Perhaps you can inform them, that viruses typically
don't use any smarthost (you) but send theiy crap directly.

Outbound virus scanning is just to make annoying "this has been scanned by
SurelyNotCheap virus protection" and things like that.


> You do realize that anyone can put anything in their From: header, so if
> someone finds out about this, they can easily work they way around this.
> From: headers are untrusted, and should not be used for any kind of
> policy-making decisions.

Well, authentication-accounts should be suitable for this.
But I do not know how this could work with Courier.

regards, Bernd

--
tail -f /dev/null

-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://sourceforge.net/services/buy/index.php
_______________________________________________
courier-users mailing list
courier-users@lists.sourceforge.net
Unsubscribe: https://lists.sourceforge.net/lists/.../courier-users

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (GNU/Linux)

iQIcBAABAgAGBQJIV5/yAAoJEA0b18vi86Q/HjcQAMt0K1P2G7FAqk8vAymLcS+i
PDAAyTInbmF0jIo1izSy2XQlxXT6NdfeqYbzHGlGw3FVKOsInC po38LF9/upKep0
XwxEApwm4xjyZ2znEiQ4lE9ElIzR2L48IIULHvf1PIADOmKO3W yIv41rROczyvj5
N7dHboRaDs4/hSHuFhRsUXbFDmU6tSnSk8d2FyxFaMkS5GwZHn3OTd0LtUSH2W SU
BlX8dAeIcFXMqpZJu2dOdFKMUWqKyv2fAz9MoqPfFvj8CDUT1m Q8btjq7MCBM2Au
IF22PDxJn0U0bGHKF01SnxGZDvUI3xHi/WwDnDmv40W5AZgaiN3hLhJU12vI67Y6
PLjC2EEMabQ/vbc/wxNdXfaPJUYHzdSM6ZeDTRsmnncffRN6Vg5lv80BNsYP1CUt
fNTb/m7t/WjcCByVi5VG/5teirIevk5yopK+cCgz7S0dCyLPqhzHm074winMVog1
G7iov3U1Cd5g1Y16SR3HxbF5vTTE5pMiz/pvhX2b9sFagnpnW3EaPAQciK15RZWZ
NdSGLLFNn1FuxPOlC8VjwUEpKWDhjAkVrQLH3vRhUBVXxomdy/rWihb035qMTHy+
TaFBP+9kPOOa90K+ycYf0Oi+xp7WBaNHJs/sqJbxfu9tDqQSZEbBx2Vd7H3EuFH9
iFJXBz507XRJ8VWXbrMO
=/Cnf
-----END PGP SIGNATURE-----

Bernd Wurst wrote:
> If anyone in this world needs outbound virus scanning, they should not be
> given internet-access. Perhaps you can inform them, that viruses typically
> don't use any smarthost (you) but send theiy crap directly.
>

Calm down, man. There are plenty of people who believe that the best
way to combat email viruses is to disallow outbound TCP connections to
port 25 from systems other than the SMTP server, and additionally scan
outgoing messages at the SMTP server. Layering security is good. It
mitigates the risk posed by direct-mail viruses as well as the viruses
that infect files that people exchange and those that use Outlook as a
mail transport. The latter weren't miraculously eradicated when viruses
started sending mail on their own.


-------------------------------------------------------------------------
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://sourceforge.net/services/buy/index.php
_______________________________________________
courier-users mailing list
courier-users@lists.sourceforge.net
Unsubscribe: https://lists.sourceforge.net/lists/.../courier-users