Re: Spamassasin as a gateway filter for Exchange

On tor 20 maj 2010 08:12:12 CEST, Sebastian Ries wrote http://www-personal.umich.edu/~malth/gaptuning/postfix/getadsmtp.pl Run it hourly, do a postmap afterwords and you are done ;-) enable ldap in postfix, and then postfix dont need clumsy perl scripts with old data 1 sec after postmap :)

RE: Spamassasin as a gateway filter for Exchange

-Original Message- > I think it would be easier to just accept only emails for your domain(s) at > your mta (postfix or exim), then enable the antispam filter on exchange and > configure it drop (not reject / bounce) any messages to invalid addresses. That's a very bad idea-- legitima

RE: Spamassasin as a gateway filter for Exchange

> You can use Postfix's probing (or Exim's callout) to query the Exchange 'server' provided it is set up to reject invalid recipients. As pointed out if this is not done Exchange will happily take any old rubbish and bounce it some time later. Alternatively have the MTA make an LDAP callout to AD.

RE: Spamassasin as a gateway filter for Exchange

> > > I think it would be easier to just accept only emails for > your domain(s) at > > your mta (postfix or exim), then enable the antispam filter on > > exchange and configure it drop (not reject / bounce) any > messages to invalid addresses. > > That's a very bad idea-- legitimate sender

Re: Spamassasin as a gateway filter for Exchange

On 5/19/10 9:12 PM, "Jean-Paul Natola" wrote: > I think it would be easier to just accept only emails for your domain(s) at > your mta (postfix or exim), then enable the antispam filter on exchange and > configure it drop (not reject / bounce) any messages to invalid addresses. That's a very

Re: Spamassasin as a gateway filter for Exchange

Hi > > If there are multiple exchange backends for postfix/spamasassin > > gateway ... how could one validate that users exists, given that you > > only have a list of valid users for some of the exchange servers and > > the mailahead/milterahead/smtp are not an option? As every Exchange requires

Re: Spamassasin as a gateway filter for Exchange

On Wed, 2010-05-19 at 17:37 -0500, Andy Dorman wrote: > On 05/19/2010 04:26 PM, Karsten � wrote: > > On Wed, 2010-05-19 at 23:13 +0200, Mikael Syska wrote: > >> Not to highjack the thread, but there are also other things to consider. > >> > >> I have no idea how on Postfix, but this could help you

Re: Spamassasin as a gateway filter for Exchange

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 5/19/10 9:12 PM, Jean-Paul Natola wrote: > > >> The only real problem, validating recipients at the front MX, based >> on the data in the backend Exchange servers. > > I think it would be easier to just accept only emails for your > domain(s) a

RE: Spamassasin as a gateway filter for Exchange

>The only real problem, validating recipients at the front MX, based on >the data in the backend Exchange servers. I think it would be easier to just accept only emails for your domain(s) at your mta (postfix or exim), then enable the antispam filter on exchange and configure it drop (not

RE: Spamassasin as a gateway filter for Exchange

> Can anybody point me in the diretion of a document or place where I could find information about setting up a >solo Linux Debian server running spamassassin as a gateway spam filter that sends the mail along to an exchange server? I have that exact setup , but I have it running on Freeb

Re: Spamassasin as a gateway filter for Exchange

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 5/19/10 4:13 PM, Mikael Syska wrote: > If there are multiple exchange backends for postfix/spamasassin > gateway ... how could one validate that users exists, given that you > only have a list of valid users for some of the exchange servers and

Re: Spamassasin as a gateway filter for Exchange

On Wed, May 19, 2010 at 15:14, Kaleb Hosie wrote: >> Hi, >> >> Not to highjack the thread, but there are also other things to consider. >> >> I have no idea how on Postfix, but this could help you too Scott Lavoie. >> >> If there are multiple exchange backends for postfix/spamasassin >> gateway ..

Re: Spamassasin as a gateway filter for Exchange

On Wed, May 19, 2010 at 12:56, Scott Lavoie wrote: > Can anybody point me in the direction of a document or place where I could > find information about setting up a solo Linux Debian server running > spamassassin as a gateway spam filter that sends the mail along to an > exchange server? For get

Re: Spamassasin as a gateway filter for Exchange

On Wed, 19 May 2010, Mikael Syska wrote: > Hi, > > Not to highjack the thread, but there are also other things to consider. > > I have no idea how on Postfix, but this could help you too Scott Lavoie. > > If there are multiple exchange backends for postfix/spamasassin > gateway ... how could one v

Re: Spamassasin as a gateway filter for Exchange

On 05/19/2010 04:26 PM, Karsten � wrote: On Wed, 2010-05-19 at 23:13 +0200, Mikael Syska wrote: Not to highjack the thread, but there are also other things to consider. I have no idea how on Postfix, but this could help you too Scott Lavoie. If there are multiple exchange backends for postfix/

RE: Spamassasin as a gateway filter for Exchange

> Hi, > > Not to highjack the thread, but there are also other things to consider. > > I have no idea how on Postfix, but this could help you too Scott Lavoie. > > If there are multiple exchange backends for postfix/spamasassin > gateway ... how could one validate that users exists, given that you

Re: Spamassasin as a gateway filter for Exchange

On 2010-05-19 23:57, Karsten Bräckelmann wrote: What I can do, however, is to split up the original question into manageable chunks, as unrelated as possible. SA and postfix on Debian? I can highly recommend: FuGlu http://sourceforge.net/apps/trac/fuglu/

Re: Spamassasin as a gateway filter for Exchange

On Wed, 19 May 2010, Mikael Syska wrote: > Hi, > > Not to highjack the thread, but there are also other things to consider. > > I have no idea how on Postfix, but this could help you too Scott Lavoie. > > If there are multiple exchange backends for postfix/spamasassin > gateway ... how could one v

Re: Spamassasin as a gateway filter for Exchange

On Wed, 2010-05-19 at 23:39 +0200, Yet Another Ninja wrote: > On 2010-05-19 23:26, Karsten Bräckelmann wrote: > > The only real problem, validating recipients at the front MX, based on > > the data in the backend Exchange servers. Everything else is not a > > problem, even though managing a Linux s

Re: Spamassasin as a gateway filter for Exchange

On Wed, 2010-05-19 at 23:34 +0200, Mikael Syska wrote: > Yes, we are unfortunately one of the bad guess atm, and I want to > change that ... so hopefully this will give Exchange users and idea > how to fight it, if they are using this kind of setup. Ugh. Well, good you *want* to change it. :) > >

Re: Spamassasin as a gateway filter for Exchange

On 2010-05-19 23:26, Karsten Bräckelmann wrote: On Wed, 2010-05-19 at 23:13 +0200, Mikael Syska wrote: Not to highjack the thread, but there are also other things to consider. I have no idea how on Postfix, but this could help you too Scott Lavoie. If there are multiple exchange backends for p

Re: Spamassasin as a gateway filter for Exchange

Hi, Yes, we are unfortunately one of the bad guess atm, and I want to change that ... so hopefully this will give Exchange users and idea how to fight it, if they are using this kind of setup. 2010/5/19 Karsten Bräckelmann : > On Wed, 2010-05-19 at 23:13 +0200, Mikael Syska wrote: >> Not to highj

Re: Spamassasin as a gateway filter for Exchange

On Wed, 2010-05-19 at 23:13 +0200, Mikael Syska wrote: > Not to highjack the thread, but there are also other things to consider. > > I have no idea how on Postfix, but this could help you too Scott Lavoie. > > If there are multiple exchange backends for postfix/spamasassin > gateway ... how coul

RE: Spamassasin as a gateway filter for Exchange

> > Can anybody point me in the direction of a document or place where I > > could find information about setting up a solo Linux Debian server > > running spamassassin as a gateway spam filter that sends the mail > > along to an exchange server? > > This can be confusing to those that have never

Re: Spamassasin as a gateway filter for Exchange

Hi, Not to highjack the thread, but there are also other things to consider. I have no idea how on Postfix, but this could help you too Scott Lavoie. If there are multiple exchange backends for postfix/spamasassin gateway ... how could one validate that users exists, given that you only have a l

RE: Spamassasin as a gateway filter for Exchange

> Can anybody point me in the direction of a document or place where I could find information about setting up a >solo Linux Debian server running spamassassin as a gateway spam filter that sends the mail along to an exchange server? This can be confusing to those that have never done this

Re: Spamassasin as a gateway filter for Exchange

On 5/19/10 3:56 PM, Scott Lavoie wrote: Can anybody point me in the direction of a document or place where I could find information about setting up a solo Linux Debian server running spamassassin as a gateway spam filter that sends the mail along to an exchange server?

Spamassasin as a gateway filter for Exchange

Can anybody point me in the direction of a document or place where I could find information about setting up a solo Linux Debian server running spamassassin as a gateway spam filter that sends the mail along to an exchange server? Scott Lavoie Owner Mars Computer, LLC 99 Center ST. Bangor,