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List Info
Thread: Re: Challenge-Response
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| Re: Challenge-Response |
 
United States |
2008-04-25 12:56:34 |
"That's quite severe. I bet lots of legit email gets
rejected. Do you
reject or Hold at +1?"
I never reject anything there. I hold everything over +1. I
do a lot of
denying before anything gets there by using surbl and rbl.
Less legit email ends up in the holding pen than one would
think. Maybe
one or two a month? Stll I check the holding pen every day,
just in case.
Warren Michelsen wrote:
> At 9:03 PM -0400 4/23/08, Eric Vey sent email regarding
Re: [SurgeMail
> List] Challenge-Response:
>> "Now, I know that Challenge-Response is a
major component in Netwin's
>> anti-spam toolbox"
>>
>> It is?
>
> Yes, Netwin support has often encouraged its use.
>
>> I've never used it. I use friends, but I don't have
the
>> challenge/response turned on. I use: "Apply
friends list but don't
>> block anything or request confirmation."
>
> A great setting. I use it myself and encourage others
to set their
> Friends that way.
>
>
>
>> I also have the option to "Add all outgoing
email addresses to list."
>> turned on.
>
> I encourage that as well.
>
>
>>
>> This means that I have a nice little white list
after a while. By
>> setting the Aspam setting for 1+ that pretty stops
everything unless
>> it is in the friends list.
>
> That's quite severe. I bet lots of legit email gets
rejected. Do you
> reject or Hold at +1?
>
>
>
>
>
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| Re: |
United States |
2008-04-25 14:50:33 |
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1. Here, at 1USA we don't use **** stars, ours
is set to say [Spam14] etc in the subject line, which is easier for 'everyday
people' to understand than to have to count stars.
2. There are legit emails that will get a spamgrade
of 4 to 30. Most of the ones above 20 are from attorneys sending
documents to customers.
So, it's not necessarily the GRADE that's important....
(I'll say it again...) it's a combination of RBL's, SPF,
Sender Confirmation, SpamGrading, mfilter.rul, friends.rul etc -- that
lets the good ones in and keeps ;the bad ones out.
Remember that Friends kicks in only if the sender is a new
sender who's not on the customer's Whitelist yet -- unless you go into
friends.rul and create rules like:
accept:Received:123.456.789.0
vanish:subject:Online RX
request:From:wanadoo.fr
vanish:Sender-IPName:veloxzone.br
bounce:Return-Path:Silvermail
bounce:$body:Minister of Finance
These examples show how you (the Admin) want to handle
emails that "you pretty much know" are a nuisance to your users;and consequently
degrades the customer's impression of your service.
and this one here will force a Friends request from any IP
in 92.x.x.x land:
request:Received:(92.
... We're an ISP in the USA and most customers don't
have friends in foreign lands. If a sender in a foreign land wants to send
an email into here, they *will* be challenged and either get listed on the
customer's Whitelist, or get dropped after X days (the Friends
timeout).
Ding! ; Does the light go on?
This is some powerful info that I've provided
here.
BarryZ
----- Original Message -----
Sent: Friday, April 25, 2008 1:56 PM
Subject: Re: [SurgeMail List] Challenge-Response
"That's quite severe. I bet lots of legit email gets rejected. Do
you
reject or Hold at +1?"
I never reject anything there. I hold
everything over +1. I do a lot of
denying before anything gets there by
using surbl and rbl.
Less legit email ends up in the holding pen than one
would think. Maybe
one or two a month? Stll I check the holding pen every
day, just in case.
Warren Michelsen wrote:
>; At 9:03 PM -0400
4/23/08, Eric Vey sent email regarding Re: [SurgeMail
> List]
Challenge-Response:
>> "Now, I know that Challenge-Response is a major
component in Netwin's
>> anti-spam toolbox"
>>
>;> It
is?
>
> Yes, Netwin support has often encouraged its
use.
>;
>> I've never used it. I use friends, but I don't have the
>>; challenge/response turned on. I use: "Apply friends list but don't
>>; block anything or request confirmation."
>
> A great
setting. I use it myself and encourage others to set their
> Friends that
way.
>;
>
>
>> I also have the option to "Add all
outgoing email addresses to list."
>> turned on.
>
> I
encourage that as well.
>
>
>>
>>; This means that
I have a nice little white list after a while. By
>> setting the Aspam
setting for 1+ that pretty stops everything unless
>> it is in the
friends list.
>
> That's quite severe. I bet lots of legit email
gets rejected. Do you
> reject or Hold at
+1?
>
>
>
>
>
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