You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@spamassassin.apache.org by ha...@t-online.de on 2013/09/15 08:48:32 UTC
Re: POP3/IMAP Anti Spam - A basic question though
>> Hi Guys,
>>
>> This may sound a basic questions but would like to know under what
>> circumstances one should use IMAP/POP3 Anti Spam services? I do have AS for
>> SMTP and is blokcing well but would like to know what consequences it would
>> cause if I enable or disable the Pop3/imap Anti Spam settings.
>>
>> Does Spamassassin by default provides POP3/IMAP scanning and if yes how
>> would I enable or disable it
>>
>> Thanks.
>>
Hi,
I receive mails into a few boxes that are not filtered. So I have a setup that uses fetchmail
to pickup these mails and feed them into a local imap service. SA is called just prior to
delivering mail into the inbox
Regards
Wolfgang
Re: POP3/IMAP Anti Spam - A basic question though
Posted by Martin Gregorie <ma...@gregorie.org>.
On Mon, 2013-09-16 at 15:40 -0700, Ted Mittelstaedt wrote:
> On 9/15/2013 11:24 AM, Martin Gregorie wrote:
> > On Sun, 2013-09-15 at 23:27 +0530, Blason rock wrote:
> >> I agree an wouldnt harm if I disable it as my smtp scanning is definitely
> >> running fine. What I was thinking about is does imap and pop3 AS scanning
> >> only needed for ISP kindaa environment? Since I do run small setup I know
> >> all my users are trusted and have AV running on their desktops. So they
> >> wont spam my mail server internally.
> >>
> > If some of your users are using Windows-based systems there is a small
> > chance that a zero-day exploit could infect those machines and, of
> > course, if any of their outgoing mail originates from a mobile device,
> > there's a rather higher malware risk since AV packages still seem to be
> > fairly rare on that kit.
> >
> >
> > Martin
> >
> >
> >
> >
>
>
> This is rare?
>
> http://www.avast.com/free-mobile-security
> http://www.symantec-norton.com/Norton_Mobile_Security_2012_p116.aspx
> http://www.avg.com/us-en/antivirus-free-for-tablets
> https://play.google.com/store/apps/details?id=com.wsandroid.suite&hl=en
>
Do many people use AV on mobiles or are they ignored because they slow
the phone down and eat battery? I've somehow got that impression. I
wouldn't know from personal experience since I have no use for a
smartphone.
In any case my point is still valid: if somehow the OP's users pass
outgoing mail from a phone or tablet through his MTA then there's a fair
chance that one or more of those devices will be infected if it has no
AV installed.
Martin
Re: POP3/IMAP Anti Spam - A basic question though
Posted by Ted Mittelstaedt <te...@ipinc.net>.
On 9/15/2013 11:24 AM, Martin Gregorie wrote:
> On Sun, 2013-09-15 at 23:27 +0530, Blason rock wrote:
>> I agree an wouldnt harm if I disable it as my smtp scanning is definitely
>> running fine. What I was thinking about is does imap and pop3 AS scanning
>> only needed for ISP kindaa environment? Since I do run small setup I know
>> all my users are trusted and have AV running on their desktops. So they
>> wont spam my mail server internally.
>>
> If some of your users are using Windows-based systems there is a small
> chance that a zero-day exploit could infect those machines and, of
> course, if any of their outgoing mail originates from a mobile device,
> there's a rather higher malware risk since AV packages still seem to be
> fairly rare on that kit.
>
>
> Martin
>
>
>
>
This is rare?
http://www.avast.com/free-mobile-security
http://www.symantec-norton.com/Norton_Mobile_Security_2012_p116.aspx
http://www.avg.com/us-en/antivirus-free-for-tablets
https://play.google.com/store/apps/details?id=com.wsandroid.suite&hl=en
Ted
PS I don't mean windows mobile which has 0.00000001% of the mobile
market and shrinking....
Re: POP3/IMAP Anti Spam - A basic question though
Posted by Martin Gregorie <ma...@gregorie.org>.
On Sun, 2013-09-15 at 23:27 +0530, Blason rock wrote:
> I agree an wouldnt harm if I disable it as my smtp scanning is definitely
> running fine. What I was thinking about is does imap and pop3 AS scanning
> only needed for ISP kindaa environment? Since I do run small setup I know
> all my users are trusted and have AV running on their desktops. So they
> wont spam my mail server internally.
>
If some of your users are using Windows-based systems there is a small
chance that a zero-day exploit could infect those machines and, of
course, if any of their outgoing mail originates from a mobile device,
there's a rather higher malware risk since AV packages still seem to be
fairly rare on that kit.
Martin
Re: POP3/IMAP Anti Spam - A basic question though
Posted by Blason rock <bl...@gmail.com>.
I agree an wouldnt harm if I disable it as my smtp scanning is definitely
running fine. What I was thinking about is does imap and pop3 AS scanning
only needed for ISP kindaa environment? Since I do run small setup I know
all my users are trusted and have AV running on their desktops. So they
wont spam my mail server internally.
On 15 Sep 2013 21:55, "Martin Gregorie" <ma...@gregorie.org> wrote:
> On Sun, 2013-09-15 at 06:48 +0000, hamann.w@t-online.de wrote:
> >
> > >> Hi Guys,
> > >>
> > >> This may sound a basic questions but would like to know under what
> > >> circumstances one should use IMAP/POP3 Anti Spam services? I do have
> AS for
> > >> SMTP and is blokcing well but would like to know what consequences it
> would
> > >> cause if I enable or disable the Pop3/imap Anti Spam settings.
> > >>
> > >> Does Spamassassin by default provides POP3/IMAP scanning and if yes
> how
> > >> would I enable or disable it
> > >>
> > >> Thanks.
> > >>
> >
> > Hi,
> >
> > I receive mails into a few boxes that are not filtered. So I have a
> setup that uses fetchmail
> > to pickup these mails and feed them into a local imap service. SA is
> called just prior to
> > delivering mail into the inbox
> >
> I do something similar except that I replaced fetchmail with getmail. I
> find that, unlike fetchmail, getmail doesn't cause already read messages
> to accumulate in the source mailbox. I developed my current MDA script
> for fetchmail and then found that getmail was able to use it without any
> modifications.
>
> My MDA script runs spamc to classify incoming messages as spam or ham
> and then deals with it as appropriate. Spam is quarantined. Ham is piped
> into sendmail for delivery to my MTA (Postfix). A separate cron job
> deletes spam after 7 days.
>
>
> Martin
>
>
>
>
>
Re: POP3/IMAP Anti Spam - A basic question though
Posted by Martin Gregorie <ma...@gregorie.org>.
On Sun, 2013-09-15 at 06:48 +0000, hamann.w@t-online.de wrote:
>
> >> Hi Guys,
> >>
> >> This may sound a basic questions but would like to know under what
> >> circumstances one should use IMAP/POP3 Anti Spam services? I do have AS for
> >> SMTP and is blokcing well but would like to know what consequences it would
> >> cause if I enable or disable the Pop3/imap Anti Spam settings.
> >>
> >> Does Spamassassin by default provides POP3/IMAP scanning and if yes how
> >> would I enable or disable it
> >>
> >> Thanks.
> >>
>
> Hi,
>
> I receive mails into a few boxes that are not filtered. So I have a setup that uses fetchmail
> to pickup these mails and feed them into a local imap service. SA is called just prior to
> delivering mail into the inbox
>
I do something similar except that I replaced fetchmail with getmail. I
find that, unlike fetchmail, getmail doesn't cause already read messages
to accumulate in the source mailbox. I developed my current MDA script
for fetchmail and then found that getmail was able to use it without any
modifications.
My MDA script runs spamc to classify incoming messages as spam or ham
and then deals with it as appropriate. Spam is quarantined. Ham is piped
into sendmail for delivery to my MTA (Postfix). A separate cron job
deletes spam after 7 days.
Martin