Re: [spamdyke-users] The Mirapoint way

[ramalingam m]

Dear all,
If possible can you tell me what configuration should i have to to to
prevent spammers using my domain for relaying  which should be done for
avoiding spam i.e. i  heard in smtp authentication mail from other domain
can reach us when they send from browser or outlook express(any mail client)
but if they want to send via mail client using our mail domain(relaying
using other domain spammers do) then they would have to to do smtp
authentication is it possible over here.

On Thu, Jul 16, 2009 at 8:23 AM, Sam Clippinger  wrote:

> Maybe.  Are you suggesting it's just a delay to see if the sender blasts
> everything out, like the filter to catch earlytalkers?  120 seconds
> seems like an amazingly long time for that kind of test, if it's
> deliberate.  I would expect a lot of clients to timeout before 120
> seconds (I think the default for Outlook Express is 90 seconds).  Even
> if they didn't timeout, a busy server could easily run out of resources
> with lots of remote connections just hanging open like that.
>
> Without more information, my gut tells me it's probably an error on
> their end.  Something (e.g. rDNS, authentication, recipient validation)
> is taking a long time to finish or timeout, which is causing a delay.
>
> -- Sam Clippinger
>
> Ulrich C. Manns wrote:
> > If i send an email to a mirapoint messaging server
> > (http://www.mirapoint.com) the communication stops for 120 seconds
> > after i send /rcpt to:
> > /
> > Maybe this is an additional test before greylisting? Something for
> > Spamdyke 4.0.11?
> >
> > Regards,
> > Ulrich
> > 
> >
> > ___
> > spamdyke-users mailing list
> > spamdyke-users@spamdyke.org
> > http://www.spamdyke.org/mailman/listinfo/spamdyke-users
> >
> ___
> spamdyke-users mailing list
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> http://www.spamdyke.org/mailman/listinfo/spamdyke-users
>
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Re: [spamdyke-users] Exchange Replacement [was: where is Sam?]

[Eric Shubert]

dnk wrote:
> On 2009-07-15, at 7:56 PM, sebasti...@jammicron.com wrote:
> 
>> Glad you are still around, would be a shame to see this excellent  
>> piece of software go down in inactivity!
> 
> It is one of the main reasons I have not yet jumped to another mail  
> server from qmail. My company wants an exchange replacement.
> 
> 
> d

I'm curious to know why your company wants Exchange. Some 
(dis)functionality that you don't presently have? What are the reasons?

If you end up having to install Exchange as a mail store, you're still 
going to need some anti-spam measure. A front-end mail server (QMT) with 
spamdyke suits this purpose nicely. So I'm guessing that you'll simply 
end up adding an exchange server to what you have, and migrating the 
user accounts to exchange. You could probably even run them both on the 
same hardware with VMware if you like (depending on your volume).

-- 
-Eric 'shubes'

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Re: [spamdyke-users] Exchange Replacement [was: where is Sam?]

[dnk]

On 2009-07-16, at 10:11 AM, Eric Shubert wrote:

> dnk wrote:
>> On 2009-07-15, at 7:56 PM, sebasti...@jammicron.com wrote:
>>
>>> Glad you are still around, would be a shame to see this excellent
>>> piece of software go down in inactivity!
>>
>> It is one of the main reasons I have not yet jumped to another mail
>> server from qmail. My company wants an exchange replacement.
>>
>>
>> d
>
> I'm curious to know why your company wants Exchange. Some
> (dis)functionality that you don't presently have? What are the  
> reasons?
>
> If you end up having to install Exchange as a mail store, you're still
> going to need some anti-spam measure. A front-end mail server (QMT)  
> with
> spamdyke suits this purpose nicely. So I'm guessing that you'll simply
> end up adding an exchange server to what you have, and migrating the
> user accounts to exchange. You could probably even run them both on  
> the
> same hardware with VMware if you like (depending on your volume).
>
> -- 
> -Eric 'shubes'
>

Well they do not want an exchange box per se, they want exchange  
features (IE global address in the client, shared calendars, etc - In  
fact that is all they want. I don't even need the rest.). What I meant  
by "Exchange Replacement" was one of the linux packages that were an  
"Exchange Replacement" - such as Scalix, Zimbra, etc.

I myself just haven't had much time or success in finding a good  
calendar server for CentOS (meaning easy to install or update). Nor  
have I tackled LDAP yet for a GAB (global address book). Just more  
time restrictions on my part. My intent was to always document it and  
throw it on the wiki if I ever got one working (either on a toaster  
box, or separate). Then it could help others like me who want to keep  
running the toaster but have pressure from the higher level to add  
more exchange like features.

D


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Re: [spamdyke-users] Exchange Replacement [was: where is Sam?]

[Eric Shubert]

dnk wrote:
> On 2009-07-16, at 10:11 AM, Eric Shubert wrote:
> 
>> dnk wrote:
>>> On 2009-07-15, at 7:56 PM, sebasti...@jammicron.com wrote:
>>>
 Glad you are still around, would be a shame to see this excellent
 piece of software go down in inactivity!
>>> It is one of the main reasons I have not yet jumped to another mail
>>> server from qmail. My company wants an exchange replacement.
>>>
>>>
>>> d
>> I'm curious to know why your company wants Exchange. Some
>> (dis)functionality that you don't presently have? What are the  
>> reasons?
>>
>> If you end up having to install Exchange as a mail store, you're still
>> going to need some anti-spam measure. A front-end mail server (QMT)  
>> with
>> spamdyke suits this purpose nicely. So I'm guessing that you'll simply
>> end up adding an exchange server to what you have, and migrating the
>> user accounts to exchange. You could probably even run them both on  
>> the
>> same hardware with VMware if you like (depending on your volume).
>>
>> -- 
>> -Eric 'shubes'
>>
> 
> Well they do not want an exchange box per se, they want exchange  
> features (IE global address in the client, shared calendars, etc - In  
> fact that is all they want. I don't even need the rest.). What I meant  
> by "Exchange Replacement" was one of the linux packages that were an  
> "Exchange Replacement" - such as Scalix, Zimbra, etc.

Have a look at eGroupWare. I'm presently looking into integrating it 
with QMT.

> I myself just haven't had much time or success in finding a good  
> calendar server for CentOS (meaning easy to install or update). Nor  
> have I tackled LDAP yet for a GAB (global address book). Just more  
> time restrictions on my part. My intent was to always document it and  
> throw it on the wiki if I ever got one working (either on a toaster  
> box, or separate). Then it could help others like me who want to keep  
> running the toaster but have pressure from the higher level to add  
> more exchange like features.
> 
> D

You're not the only one. I'm working on it. Stay tuned...

-- 
-Eric 'shubes'

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Re: [spamdyke-users] Exchange Replacement [was: where is Sam?]

[Sebastian Grewe]

Really looking forward to see that. Staying tuned :)

On Thu, 2009-07-16 at 11:01 -0700, Eric Shubert wrote:
> 
> Have a look at eGroupWare. I'm presently looking into integrating it 
> with QMT.

Cheers,
Sebastian

-- 
Sebastian Grewe
Jammicron | Experts in Powering Online Sales
Phone 604.331.0586 x 104
Fax 604.331.0587
www.jammicron.com | www.qwik.ca



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Re: [spamdyke-users] The Mirapoint way

[Sam Clippinger]

I'm not sure I understand the question here.  Are you looking for a way 
to stop spammers who are sending messages that appear to be "from" your 
domain?  That's very difficult.  SPF is probably your best bet and it's 
certainly not perfect.

If you're trying to stop spammers who are using your mail server to send 
spam, that's a configuration issue.  Both spamdyke and qmail are able to 
prevent relaying if they're configured correctly.

-- Sam Clippinger

ramalingam m wrote:
> Dear all,
> If possible can you tell me what configuration should i have to to to 
> prevent spammers using my domain for relaying  which should be done 
> for avoiding spam i.e. i  heard in smtp authentication mail from other 
> domain can reach us when they send from browser or outlook express(any 
> mail client) but if they want to send via mail client using our mail 
> domain(relaying using other domain spammers do) then they would have 
> to to do smtp authentication is it possible over here.
>
> On Thu, Jul 16, 2009 at 8:23 AM, Sam Clippinger  > wrote:
>
> Maybe.  Are you suggesting it's just a delay to see if the sender
> blasts
> everything out, like the filter to catch earlytalkers?  120 seconds
> seems like an amazingly long time for that kind of test, if it's
> deliberate.  I would expect a lot of clients to timeout before 120
> seconds (I think the default for Outlook Express is 90 seconds).  Even
> if they didn't timeout, a busy server could easily run out of
> resources
> with lots of remote connections just hanging open like that.
>
> Without more information, my gut tells me it's probably an error on
> their end.  Something (e.g. rDNS, authentication, recipient
> validation)
> is taking a long time to finish or timeout, which is causing a delay.
>
> -- Sam Clippinger
>
> Ulrich C. Manns wrote:
> > If i send an email to a mirapoint messaging server
> > (http://www.mirapoint.com) the communication stops for 120 seconds
> > after i send /rcpt to:
> > /
> > Maybe this is an additional test before greylisting? Something for
> > Spamdyke 4.0.11?
> >
> > Regards,
> > Ulrich
> >
> 
> >
> > ___
> > spamdyke-users mailing list
> > spamdyke-users@spamdyke.org 
> > http://www.spamdyke.org/mailman/listinfo/spamdyke-users
> >
> ___
> spamdyke-users mailing list
> spamdyke-users@spamdyke.org 
> http://www.spamdyke.org/mailman/listinfo/spamdyke-users
>
>
> 
>
> ___
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> spamdyke-users@spamdyke.org
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>   
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