Jeroen van Aart <[email protected]> wrote:
> [email protected] wrote: 
>> Hi, 
>> I'll be asking many questions through out my  
>> implementation phase of the ASSP, please bare with me  
>>;-) 
>  
> You're gonna wake us all from hybernation. ;-| 

LOL, I hope this is a good thing.

>  
>> In my test setup, i have a sepearte box running ASSP and  
>> created a new domain on my SMTP server (eg  
>>mydomain.com). 
>  
> Sorry to be anal, please try to use  
>example.com/.net/.org domains for  
> examples. They're especially created for that,  
> http://www.ietf.org/rfc/rfc1034.txt mydomain.com in fact  
>exists. 


I only mentioned mydomain.com as an example, my real 
domain used was something else :).


>  
>> The filter setup for this domain (mydomain.com) is  
>>  Internet - > ASSP - > SMTP server -> user ... no  
>>outbound  
>> filtering yet. 
>  
> Outbound filtering is less important... but not totally  
>unnecessary. But  
> if you have configured email submission properly, i.e.  
>smtp  
> authentication using encryption on port 587 (and maybe  
>port 465 for  
> broken clients) then you should be fine for the most  
>part. 
>  
>> I cretaed the MX record for that domain to point to the  
>> ASSP box  - (mydomin.com  MX  10  assp.box.com)   and so  
>> far so good in feltering inbound emails for  
>>mydomain.com. 
>> My question is what will be the DNS setup for the PTR  
>> reverse lookup records , should it point to my SMTP  
>>server  
>> or the ASSP server ? 
>  
> It should point to the server that sends the email.  
>Since the receiving  
> server might check for a reverse dns and refuse delivery  
>(happens rarely  
> though). Since assp is a proxy as far as the receiving  
>end is concerned  
> the server that sends it is the smtp server. In fact  
>it's possible you  
> don't even use assp for outgoing but use the smtp server  
>directly. 

Great !
So it should look like this

assp.box.com     IN  A     192.168.1.1
mydomain.com     IN  MX 10 assp.box.com.

smtp.server.com  IN A     192.168.1.2
192.168.1.2      IN PTR   smtp.server.com.
mydomain.com     IN A     192.168.1.2


>  
> The way I have it configured I let outgoing email route  
>from the smtp  
> server through assp to enable whitelisting, then it  
>routes back to the  
> smtp server which sends it out. 

I assume it will also do spam/virus blocking of mail sent 
from local users on mydomain.com.
Very interesting !!.
Which settings on the webadmin please ?

>  
>> For sending outgoing mail and reading mail via POP,  
>>users  
>> of mydomain.com will connect directly to the SMTP  
>>server,  
>> does that mean we still have to create DNS (A) records  
>>to  
>> point to the SMTP server and only keep the (MX) record  
>>to  
>> point to the ASSP box ? 
>  
> Yes, unless you want your users to remember an IP  
>address, which  
> technically speaking is not a problem at all. I assume  
>you have an entry  
> for assp.example.com to resolve it to an IP address. 
>  

Yes.

Thanks for the great feedback and support...
Greetings,

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