Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
Matt Fretwell wrote: that calls the restective programmes ^^ That should say 'respective' :) Matt ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
Hi, What are the benefits of using 3rd party software like Mailscanner, Mimedefang and many others with clamav? Why do people use when it can be done simply with clamav-milter and spamassassin. Regards Nabin Limbu On 22 Mar 2005 at 11:51, Matt Fretwell wrote: Nabin Limbu wrote: Sendmail + Clamav with milter + MailScanner + Spamassassin Is the above combination correct to fullfill my objective? Now, I'm confused why I should use MailScanner. MailScanner also claims that it is an antivirus program and spam blocker. If so, why do I require clamav and spamassassin? You do not need Mailscanner if you are using the milter. Mailscanner is a processing programme that calls the restective programmes, i.e: clamav, spamassassin. Read the documentation on clamav.net, not some howto. Matt ___ http://lurker.clamav.net/list/clamav-users.html ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
Nabin Limbu wrote: What are the benefits of using 3rd party software like Mailscanner, Mimedefang and many others with clamav? Why do people use when it can be done simply with clamav-milter and spamassassin. Generally, it is purely for extra options and configurability. The likes of Mailscanner, Amavis, etc tend to incorporate the facility to scan for various types of content, or correctness of the mail composition, by calling upon various seperate programmes. Expandability would probably be the simplest way to put it. Also, a milter is Sendmail specific, (as far as I know), whereas external programmes like the above are designed to work with most MTA's. Matt ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
On Tue, 22 Mar 2005 19:33:03 +0530, Nabin Limbu [EMAIL PROTECTED] wrote: Hi, What are the benefits of using 3rd party software like Mailscanner, Mimedefang and many others with clamav? Why do people use when it can be done simply with clamav-milter and spamassassin. Efficiency - it's quicker to pass the mail to a single milter and let it handle it than to use multiple milters to achieve the same result (depending, of course, on your choice of milters). -- Please keep list traffic on the list. Rob MacGregor Whoever fights monsters should see to it that in the process he doesn't become a monster. Friedrich Nietzsche ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
On Tuesday 22 Mar 2005 14:27, Rob MacGregor wrote: On Tue, 22 Mar 2005 19:33:03 +0530, Nabin Limbu [EMAIL PROTECTED] wrote: Hi, What are the benefits of using 3rd party software like Mailscanner, Mimedefang and many others with clamav? Why do people use when it can be done simply with clamav-milter and spamassassin. Efficiency - it's quicker to pass the mail to a single milter and let it handle it than to use multiple milters to achieve the same result (depending, of course, on your choice of milters). That is too much of a generalisation to be true. -- Nigel Horne. Arranger, Composer, Typesetter. NJH Music, Barnsley, UK. ICQ#20252325 [EMAIL PROTECTED] http://www.bandsman.co.uk ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
Nigel Horne wrote: On Tuesday 22 Mar 2005 14:27, Rob MacGregor wrote: On Tue, 22 Mar 2005 19:33:03 +0530, Nabin Limbu [EMAIL PROTECTED] wrote: Hi, What are the benefits of using 3rd party software like Mailscanner, Mimedefang and many others with clamav? Why do people use when it can be done simply with clamav-milter and spamassassin. Efficiency - it's quicker to pass the mail to a single milter and let it handle it than to use multiple milters to achieve the same result (depending, of course, on your choice of milters). That is too much of a generalisation to be true. We use MailScanner because it offers additional tools, delivery options, routing, and filtering above clamav. We also do not have issues with the clam daemon that some have had. Julian is exceedingly responsive to his community, the level of support and help on the MailScanner is second to nothing I have seen in Open Source Software. I'm *not* saying anything bad about clamav, we first used it as test while we searched the budget for commercial AV software and never saw a need for more. This list has proven to be exceptional as well. Clamav is great, MailScanner just makes it even better. DAve -- Dave Goodrich Systems Administrator http://www.tls.net Get rid of Unwanted Emails...get TLS Spam Blocker! ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
* Nigel Horne [EMAIL PROTECTED] [20050322 17:37]: wrote: On Tuesday 22 Mar 2005 14:27, Rob MacGregor wrote: On Tue, 22 Mar 2005 19:33:03 +0530, Nabin Limbu [EMAIL PROTECTED] wrote: Hi, What are the benefits of using 3rd party software like Mailscanner, Mimedefang and many others with clamav? Why do people use when it can be done simply with clamav-milter and spamassassin. Because there is no rule telling people what to do. Efficiency - it's quicker to pass the mail to a single milter and let it handle it than to use multiple milters to achieve the same result (depending, of course, on your choice of milters). What works for you doesn't necessarily work for everyone else. -Wash http://www.netmeister.org/news/learn2quote.html -- +==+ |\ _,,,---,,_ | Odhiambo Washington[EMAIL PROTECTED] Zzz /,`.-'`'-. ;-;;,_ | Wananchi Online Ltd. www.wananchi.com |,4- ) )-,_. ,\ ( `'-'| Tel: +254 20 313985-9 +254 20 313922 '---''(_/--' `-'\_) | GSM: +254 722 743223 +254 733 744121 +==+ When the going gets tough, the tough get empirical -- Jon Carroll ___ http://lurker.clamav.net/list/clamav-users.html
RE: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
-Original Message- Dave Goodrich wrote: We use MailScanner because it offers additional tools, delivery options, routing, and filtering above clamav. We also do not have issues with the clam daemon that some have had. Julian is exceedingly responsive to his community, the level of support and help on the MailScanner is second to nothing I have seen in Open Source Software. ::snip:: Clamav is great, MailScanner just makes it even better. MailScanner has a design flaw that can not be overlooked. By not being a Milter, it does not operate during the SMTP conversation, meaning you can not reject during the conversation. Because MailScanner is a post-conversation processor, you have to either generate a separate bounce message to return to the sending server which will undoubtedly just sit in your outbound mail queue due to forged or invalid sender addresses... Or you silently discard a message after fully rec eiving it (which does not tell the sending server that the message was unwanted. In addition, you have no option but to fully receive the message (and expend the bandwidth, disk space, and other resources required to receive it), before deciding you don't want it. Better to use a Milter, because a Milter can reject during much earlier parts of the SMTP dialogue, such as at the EHLO/HELO, the MAIL FROM, the RECPT TO, and so on... Before you commit to receiving the body, for example. MailScanner is nice, as it is highly customizable. But if you want that flexibility PLUS the advantages of a true Milter, you should look at MIMEDefang. And MIMEDefang can work in conjunction with the Clam milter, with Clamd, or with clamscan (or any combination of those 3), in addition to other scanning/filtering options out of the box. Ken ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
You can forego mailscanner in this setup. I use: sendmail+clamd+clamav-milter+spamassassin. This seems to work pretty well. -- JAV -- Original Message --- From: Nabin Limbu [EMAIL PROTECTED] To: clamav-users@lists.clamav.net Sent: Tue, 22 Mar 2005 16:51:40 +0530 Subject: [Clamav-users] sendmail + clamav + mailscanner + spamassassin Hi, My objective is to scan all mails and block / tag spam mails. While searching online, I have found many one suggesting to install below combination: Sendmail + Clamav with milter + MailScanner + Spamassassin Is the above combination correct to fullfill my objective? Now, I'm confused why I should use MailScanner. MailScanner also claims that it is an antivirus program and spam blocker. If so, why do I require clamav and spamassassin? Though its an off topic, I think there might be some people who have idea upon MailScanner also. Regards Nabin Limbu ___ http://lurker.clamav.net/list/clamav-users.html --- End of Original Message --- ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
On Tuesday 22 Mar 2005 14:51, Dave Goodrich wrote: Nigel Horne wrote: On Tuesday 22 Mar 2005 14:27, Rob MacGregor wrote: On Tue, 22 Mar 2005 19:33:03 +0530, Nabin Limbu [EMAIL PROTECTED] wrote: Hi, What are the benefits of using 3rd party software like Mailscanner, Mimedefang and many others with clamav? Why do people use when it can be done simply with clamav-milter and spamassassin. Efficiency - it's quicker to pass the mail to a single milter and let it handle it than to use multiple milters to achieve the same result (depending, of course, on your choice of milters). That is too much of a generalisation to be true. We use MailScanner because it offers additional tools, delivery options, routing, and filtering above clamav. We also do not have issues with the clam daemon that some have had. Julian is exceedingly responsive to his community, the level of support and help on the MailScanner is second to nothing I have seen in Open Source Software. I'm *not* saying anything bad about clamav, we first used it as test while we searched the budget for commercial AV software and never saw a need for more. This list has proven to be exceptional as well. Clamav is great, MailScanner just makes it even better. That is not my point. You cannot use a specific example to back up a sweeping statement like it's quicker to pass the mail to a single milter. If I write a milter that does 20 tasks slowly because it's written poorly, it will be slower, not quicker as Rob claimed, than running 20 separate milters each of which is written very well. Consider a milter which does 20 tasks but includes this code before each of them, for(i = 0; i 1000; i++) for(j = 0; j 1000; j++) call_slow_routine(); See the problem now of the generalisation? DAve -- Nigel Horne. Arranger, Composer, Typesetter. NJH Music, Barnsley, UK. ICQ#20252325 [EMAIL PROTECTED] http://www.bandsman.co.uk ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
Nigel Horne wrote: On Tuesday 22 Mar 2005 14:51, Dave Goodrich wrote: Nigel Horne wrote: On Tuesday 22 Mar 2005 14:27, Rob MacGregor wrote: On Tue, 22 Mar 2005 19:33:03 +0530, Nabin Limbu [EMAIL PROTECTED] wrote: Hi, What are the benefits of using 3rd party software like Mailscanner, Mimedefang and many others with clamav? Why do people use when it can be done simply with clamav-milter and spamassassin. Efficiency - it's quicker to pass the mail to a single milter and let it handle it than to use multiple milters to achieve the same result (depending, of course, on your choice of milters). That is too much of a generalisation to be true. We use MailScanner because it offers additional tools, delivery options, routing, and filtering above clamav. We also do not have issues with the clam daemon that some have had. Julian is exceedingly responsive to his community, the level of support and help on the MailScanner is second to nothing I have seen in Open Source Software. I'm *not* saying anything bad about clamav, we first used it as test while we searched the budget for commercial AV software and never saw a need for more. This list has proven to be exceptional as well. Clamav is great, MailScanner just makes it even better. That is not my point. You cannot use a specific example to back up a sweeping statement like it's quicker to pass the mail to a single milter. If I write a milter that does 20 tasks slowly because it's written poorly, it will be slower, not quicker as Rob claimed, than running 20 separate milters each of which is written very well. Consider a milter which does 20 tasks but includes this code before each of them, for(i = 0; i 1000; i++) for(j = 0; j 1000; j++) call_slow_routine(); See the problem now of the generalisation? Yep. -- Dave Goodrich Systems Administrator http://www.tls.net Get rid of Unwanted Emails...get TLS Spam Blocker! ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
Cormack, Ken wrote: -Original Message- Dave Goodrich wrote: We use MailScanner because it offers additional tools, delivery options, routing, and filtering above clamav. We also do not have issues with the clam daemon that some have had. Julian is exceedingly responsive to his community, the level of support and help on the MailScanner is second to nothing I have seen in Open Source Software. ::snip:: Clamav is great, MailScanner just makes it even better. MailScanner has a design flaw that can not be overlooked. By not being a Milter, it does not operate during the SMTP conversation, meaning you can not reject during the conversation. I run milter-ahead to check the recipient with my pop toaster. I wouldn't even think of bouncing, rejecting, mailing back to any sender because a content check failed. Whether it is because clamav found a virus or MailScanner found a disallowed filename. Since milter-ahead has confirmed that I have a valid recipient, I send any dangerous content either to the quarantine and notify the recipent, or I attach the file and send it on to the recipient. There are situations where being a post smtp processor would be totally acceptable, such as another mail gateway has already accepted the message and routed to MailScanner based on recipient, or other rules. I don't believe it is a design flaw, just something MailScanner leaves up to the sysadmin to decide how best to handle, for his situation. I never intended to infer it was the Best or Only solution. The author asked what the benefits of using a third party software were and I answered his question as we use, not you should use. DAve Because MailScanner is a post-conversation processor, you have to either generate a separate bounce message to return to the sending server which will undoubtedly just sit in your outbound mail queue due to forged or invalid sender addresses... Or you silently discard a message after fully rec eiving it (which does not tell the sending server that the message was unwanted. In addition, you have no option but to fully receive the message (and expend the bandwidth, disk space, and other resources required to receive it), before deciding you don't want it. Better to use a Milter, because a Milter can reject during much earlier parts of the SMTP dialogue, such as at the EHLO/HELO, the MAIL FROM, the RECPT TO, and so on... Before you commit to receiving the body, for example. MailScanner is nice, as it is highly customizable. But if you want that flexibility PLUS the advantages of a true Milter, you should look at MIMEDefang. And MIMEDefang can work in conjunction with the Clam milter, with Clamd, or with clamscan (or any combination of those 3), in addition to other scanning/filtering options out of the box. -- Dave Goodrich Systems Administrator http://www.tls.net Get rid of Unwanted Emails...get TLS Spam Blocker! ___ http://lurker.clamav.net/list/clamav-users.html
Re: [Clamav-users] sendmail + clamav + mailscanner + spamassassin
On Tue, 22 Mar 2005 19:33:03 +0530, Nabin Limbu [EMAIL PROTECTED] wrote: Hi, What are the benefits of using 3rd party software like Mailscanner, Mimedefang and many others with clamav? Why do people use when it can be done simply with clamav-milter and spamassassin. Mailscanner is sort of like the 'SuperStore'. Just about anything and everything you'd ever like to have all in one location. It is a great powerful and well written/supported program. However, if you leave the store with everything you want, your wallet might be way worse than empty. Wallet = System Resouces If you turn it all on, I've seen system loads increase by 30 times vs. a system running almost none of the options. Personally, I stayed with my milters (ClamAssassin for ClamAV)... at least for now. John Hinton ___ http://lurker.clamav.net/list/clamav-users.html
