Hello all

WE are running Exchange 2003 sp2. We have a couple of internal smtp servers
that send emails to some internal users by sending the email to the exchange
server. What i have noticed is the from address of the sent email is in the
form of user@domainname.com this email address happens to be a real address
in the GAL, meaning there is a user account with this same email address.
Sometimes the emails that are sent from the smtp server are delivered to the
users junk email folder, and i am thinking its manily due to two reasons

#1 because the email is originating from an smtp server Outlook checks the
header and determines that the from address cant be a GAL address, evan
though the email address that the message is from happens to be in the GAL

and

#2 the content of the email contains a html hyper link.

The weirdest thing about this is the email most of the time gets delivered
to the users mailbox, its the exception that it gets delivered to the junk
mail folder, but i cant figure out why it does this

Re: junk email filter by Alexander

Alexander
Tue Jul 22 04:10:17 CDT 2008

You did not say exactly what spam filtering are you using.

From what you say it sounds like Outlook Junk Filter is in use. However this
IMO is not a good choice because it runs on the client. A better option
would be to use the server side IMF.

Giving you an exact explanation of why would Outlook or IMF routes an email
to Junk is impossible simply because there is no documentation on their
filtering behavior.

However what is more important is to stop these false positives from
happening.

In case of IMF I recommend using the IP accept list, since the emails are
sent by internal smtp servers. Here is how to configure it:
http://www.exchangeinbox.com/article.aspx?i=44&t=3&p=2


--
Alexander Zammit
WinDeveloper Software
IMF Tune - Enable the Exchange 2003 IMF/Exchange 2007 Content Filter to
unleash its full power.
http://www.windeveloper.com/imftune/


"Family" <shofmann@kbb.com> wrote in message
news:E90687B8-1E2F-41C7-B4BD-F48B2F9A1640@microsoft.com...
> Hello all
>
> WE are running Exchange 2003 sp2. We have a couple of internal smtp
> servers that send emails to some internal users by sending the email to
> the exchange server. What i have noticed is the from address of the sent
> email is in the form of user@domainname.com this email address happens to
> be a real address in the GAL, meaning there is a user account with this
> same email address. Sometimes the emails that are sent from the smtp
> server are delivered to the users junk email folder, and i am thinking its
> manily due to two reasons
>
> #1 because the email is originating from an smtp server Outlook checks the
> header and determines that the from address cant be a GAL address, evan
> though the email address that the message is from happens to be in the GAL
>
> and
>
> #2 the content of the email contains a html hyper link.
>
> The weirdest thing about this is the email most of the time gets
> delivered to the users mailbox, its the exception that it gets delivered
> to the junk mail folder, but i cant figure out why it does this
>
>

Re: junk email filter by skip

skip
Tue Jul 22 10:46:14 CDT 2008

We use mesage labs for our anti spam solution, all email is filtered before
it enters the environment. The IMF is not turned on, because we use message
labs. Its the outlook client that is taking the action againts the email,
message labs doenst stamp the email with anything that the Outlook client
can use to determine if the email is junk or not, so its purley the outlook
client. My udnerstanding is if the IMF is off, then the all the other anti
spma filters in exchange 2003 have no effect? example would be if imf is not
enabled then the connection filtering, sender filtering and recipient
filtering take no action on the email and do not stamp any information in
the header of the email that the outlook client can use to determine junk
from non junk emails?

Many thanks
"Alexander Zammit [MVP]" <alex@respond_to_group> wrote in message
news:OLRmtq96IHA.5276@TK2MSFTNGP05.phx.gbl...
> You did not say exactly what spam filtering are you using.
>
> From what you say it sounds like Outlook Junk Filter is in use. However
> this IMO is not a good choice because it runs on the client. A better
> option would be to use the server side IMF.
>
> Giving you an exact explanation of why would Outlook or IMF routes an
> email to Junk is impossible simply because there is no documentation on
> their filtering behavior.
>
> However what is more important is to stop these false positives from
> happening.
>
> In case of IMF I recommend using the IP accept list, since the emails are
> sent by internal smtp servers. Here is how to configure it:
> http://www.exchangeinbox.com/article.aspx?i=44&t=3&p=2
>
>
> --
> Alexander Zammit
> WinDeveloper Software
> IMF Tune - Enable the Exchange 2003 IMF/Exchange 2007 Content Filter to
> unleash its full power.
> http://www.windeveloper.com/imftune/
>
>
> "Family" <shofmann@kbb.com> wrote in message
> news:E90687B8-1E2F-41C7-B4BD-F48B2F9A1640@microsoft.com...
>> Hello all
>>
>> WE are running Exchange 2003 sp2. We have a couple of internal smtp
>> servers that send emails to some internal users by sending the email to
>> the exchange server. What i have noticed is the from address of the sent
>> email is in the form of user@domainname.com this email address happens to
>> be a real address in the GAL, meaning there is a user account with this
>> same email address. Sometimes the emails that are sent from the smtp
>> server are delivered to the users junk email folder, and i am thinking
>> its manily due to two reasons
>>
>> #1 because the email is originating from an smtp server Outlook checks
>> the header and determines that the from address cant be a GAL address,
>> evan though the email address that the message is from happens to be in
>> the GAL
>>
>> and
>>
>> #2 the content of the email contains a html hyper link.
>>
>> The weirdest thing about this is the email most of the time gets
>> delivered to the users mailbox, its the exception that it gets delivered
>> to the junk mail folder, but i cant figure out why it does this
>>
>>