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Exim + SA (spamc)

  

 
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k.proskurin at fxclub

Aug 6, 2008, 7:00 AM

Post #1 of 12 (1368 views)
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Exim + SA (spamc)
Hello all.

Im wish to use SA spamc in my Exim to scan emails.
Im read docs of Exim and SA and... don`t find good answers.
As im understand in Exim it can be used by two ways:

1) av_scaner:cmdline
BUT we cant use 2 av_scaner.

2) Make a router and transport to make exim give message to spamc.
It is awful method as im think.

Why were is no something like a spam_scaner?
And what a good method of giving message to spamc?

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Best regards,
Proskurin Kirill

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dot at dotat

Aug 6, 2008, 7:52 AM

Post #2 of 12 (1325 views)
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Re: Exim + SA (spamc) [In reply to]
On Wed, 6 Aug 2008, Proskurin Kirill wrote:
>
> 1) av_scaner:cmdline
> BUT we cant use 2 av_scaner.

You can, but you can't hook in SpamAssassin as if it is a virus scanner.
See the end of the documentation section about scanning for viruses for an
example of using two AV scanners.
http://www.exim.org/exim-html-current/doc/html/spec_html/ch41.html#SECTscanvirus

> Why were is no something like a spam_scaner?
> And what a good method of giving message to spamc?

http://www.exim.org/exim-html-current/doc/html/spec_html/ch41.html#SECTscanspamass

Tony.
--
<fanf [at] exim> <dot [at] dotat> http://dotat.at/ ${sg{\N${sg{\
N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
\N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}

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k.proskurin at fxclub

Aug 6, 2008, 8:01 AM

Post #3 of 12 (1315 views)
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Re: Exim + SA (spamc) [In reply to]
Tony Finch wrote:
>> Why were is no something like a spam_scaner?
>> And what a good method of giving message to spamc?
>
> http://www.exim.org/exim-html-current/doc/html/spec_html/ch41.html#SECTscanspamass

Yes i know and use it.
BUT im want use a spamc.

--
Best regards,
Proskurin Kirill

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dot at dotat

Aug 6, 2008, 8:03 AM

Post #4 of 12 (1318 views)
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Re: Exim + SA (spamc) [In reply to]
On Wed, 6 Aug 2008, Proskurin Kirill wrote:
>
> BUT im want use a spamc.

Why?

Tony.
--
<fanf [at] exim> <dot [at] dotat> http://dotat.at/ ${sg{\N${sg{\
N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
\N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}

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k.proskurin at fxclub

Aug 6, 2008, 8:47 AM

Post #5 of 12 (1306 views)
Permalink
Re: Exim + SA (spamc) [In reply to]
Tony Finch wrote:
> On Wed, 6 Aug 2008, Proskurin Kirill wrote:
>> BUT im want use a spamc.
>
> Why?

1) Just want, why not?
2) SA says what it is MUCH faster.

Why exim have av_scaner but don`t have a spam_scaner?
Just why?

--
Best regards,
Proskurin Kirill

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peter at bowyer

Aug 6, 2008, 8:56 AM

Post #6 of 12 (1311 views)
Permalink
Re: Exim + SA (spamc) [In reply to]
On 06/08/2008, Proskurin Kirill <k.proskurin [at] fxclub> wrote:
> Tony Finch wrote:
> > On Wed, 6 Aug 2008, Proskurin Kirill wrote:
> >> BUT im want use a spamc.
> >
> > Why?
>
> 1) Just want, why not?

Because Exim's built-in integration with SA is a better way of doing it.

> 2) SA says what it is MUCH faster.

Faster than what? Reference?

> Why exim have av_scaner but don`t have a spam_scaner?

It does, just not in the way you're expecting.

--
Peter Bowyer
Email: peter [at] bowyer
Follow me on Twitter: twitter.com/peeebeee

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eduardo at kalinowski

Aug 6, 2008, 9:07 AM

Post #7 of 12 (1321 views)
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Re: Exim + SA (spamc) [In reply to]
Proskurin Kirill escreveu:
> 2) SA says what it is MUCH faster.
>

If you are concerned about calling the command 'spamassassin' several
times, I have to inform you that exim connects to the SpamAssassin
daemon just like spamc does, so it is actually more efficient than
spamc, because there is no need to spawn the spamc process.

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linux4michelle at tamay-dogan

Aug 11, 2008, 5:34 AM

Post #8 of 12 (1227 views)
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Re: Exim + SA (spamc) [In reply to]
Am 2008-08-06 16:03:58, schrieb Tony Finch:
> On Wed, 6 Aug 2008, Proskurin Kirill wrote:
> >
> > BUT im want use a spamc.
>
> Why?

Because you can KILL your mailservert if you get bombed by bot spam?

You can not trodle the resources of spamassassin and for this reason
there are "spamc/spamd" which then can be tuned.

Currently my mailserver is handling 50.000 legitim messages and over
400.000 spams per day... which are in fact 5-6 messages per second and
now imagine you open 50-200 instances of spamassassin at once.

My machine is a Quad-Xeon with 8 GByte of memnory and Raid-1 plus Hotfix
and I am sure, if I don not use "spamc/spamd" the machine would go down.

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Systemadministrator
24V Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant


--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
Michelle Konzack Apt. 917 ICQ #328449886
+49/177/9351947 50, rue de Soultz MSN LinuxMichi
+33/6/61925193 67100 Strasbourg/France IRC #Debian (irc.icq.com)
Attachments: signature.pgp (0.18 KB)


linux4michelle at tamay-dogan

Aug 11, 2008, 5:38 AM

Post #9 of 12 (1215 views)
Permalink
Re: Exim + SA (spamc) [In reply to]
Am 2008-08-06 13:07:35, schrieb Eduardo M KALINOWSKI:
> Proskurin Kirill escreveu:
> > 2) SA says what it is MUCH faster.
> >
>
> If you are concerned about calling the command 'spamassassin' several
> times, I have to inform you that exim connects to the SpamAssassin
> daemon just like spamc does, so it is actually more efficient than
> spamc, because there is no need to spawn the spamc process.

You mean, it connect to "spamd"?

Where is this written in the Documentation of

[root [at] mail:~] apt-cache policy exim4
exim4:
Installiert:4.63-17
Mögliche Pakete:4.63-17
Versions-Tabelle:
*** 4.63-17 0
500 file: etch/main Packages
100 /var/lib/dpkg/status


Thanks, Greetings and nice Day/Evening
Michelle Konzack
Systemadministrator
24V Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant


--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
Michelle Konzack Apt. 917 ICQ #328449886
+49/177/9351947 50, rue de Soultz MSN LinuxMichi
+33/6/61925193 67100 Strasbourg/France IRC #Debian (irc.icq.com)
Attachments: signature.pgp (0.18 KB)


eduardo at kalinowski

Aug 15, 2008, 5:40 AM

Post #10 of 12 (1221 views)
Permalink
Re: Exim + SA (spamc) [In reply to]
Michelle Konzack escreveu:
> Am 2008-08-06 13:07:35, schrieb Eduardo M KALINOWSKI:
>> If you are concerned about calling the command 'spamassassin' several
>> times, I have to inform you that exim connects to the SpamAssassin
>> daemon just like spamc does, so it is actually more efficient than
>> spamc, because there is no need to spawn the spamc process.
>
> You mean, it connect to "spamd"?
>
> Where is this written in the Documentation of
>
> [root [at] mail:~] apt-cache policy exim4

It is described in chapter 41 of the Exim manual (specifically in
section 41.2), which is available online at
http://www.exim.org/exim-html-current/doc/html/spec_html/ch41.html or in
the Debian packages exim4-doc-html or exim4-doc-info.

To use that feature, exim must be compiled with the content scanning
extension. In Debian, that means the exim4-deamon-heavy package.

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j at jdh28

Aug 15, 2008, 5:42 AM

Post #11 of 12 (1225 views)
Permalink
Re: Exim + SA (spamc) [In reply to]
On Mon, Aug 11, 2008 at 13:38, Michelle Konzack
<linux4michelle [at] tamay-dogan> wrote:

>> > 2) SA says what it is MUCH faster.
>> >
>>
>> If you are concerned about calling the command 'spamassassin' several
>> times, I have to inform you that exim connects to the SpamAssassin
>> daemon just like spamc does, so it is actually more efficient than
>> spamc, because there is no need to spawn the spamc process.
>
> You mean, it connect to "spamd"?
>
> Where is this written in the Documentation of
>
> [root [at] mail:~] apt-cache policy exim4
> exim4:
> Installiert:4.63-17
> Mögliche Pakete:4.63-17
> Versions-Tabelle:
> *** 4.63-17 0
> 500 file: etch/main Packages
> 100 /var/lib/dpkg/status

It is quite clear in the online documentation:
http://www.exim.org/exim-html-current/doc/html/spec_html/ch41.html#SECTscanspamass
A copy of this spec is also installed in /usr/share/doc/exim4-base/spec.txt.gz.

Regards,
John

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linux4michelle at tamay-dogan

Aug 22, 2008, 4:06 PM

Post #12 of 12 (1081 views)
Permalink
Re: Exim + SA (spamc) [In reply to]
Hello Eduardo,

Am 2008-08-15 09:40:09, schrieb Eduardo M KALINOWSKI:
> It is described in chapter 41 of the Exim manual (specifically in
> section 41.2), which is available online at
> http://www.exim.org/exim-html-current/doc/html/spec_html/ch41.html or in
> the Debian packages exim4-doc-html or exim4-doc-info.
>
> To use that feature, exim must be compiled with the content scanning
> extension. In Debian, that means the exim4-deamon-heavy package.

Thanks for this info... I am now considering to install "heavy".

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Systemadministrator
24V Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant


--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
Michelle Konzack Apt. 917 ICQ #328449886
+49/177/9351947 50, rue de Soultz MSN LinuxMichi
+33/6/61925193 67100 Strasbourg/France IRC #Debian (irc.icq.com)
Attachments: signature.pgp (0.18 KB)

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