Current sessions, spam, smtp, relay - HELP!

In the past week we have been getting a lot of spam mail. And just like all
you admins out there.. GGGRRRRAAAAHHHHH!!! It's weird because they are
coming and going from people that do business with us. Not only are they
sending us spam, we are sending them spam as well. I checked to see if the
relay settings were correct. Read http://support.microsoft.com/?id=310380
and set everything up as they said to do. I unchecked the "Allow all
computers with successfully authenticate to relay, regardless ..." Now i
don't know if that was the way they were sending spam but i also am logging
the SMTP protocol on the exchange server. Now it's weird because when i go
to the Current Sessions section under the Default SMTP Virtual Server i
periodically see people that are connected that i think should not be. The
user is some weird domain or ip address that when looked up are coming from
different parts of the world. How do i stop these guys from stop connecting
to my smtp server? I am willing to get rid of the smtp service all together
so the users will have to connect via vpn or use the webmail. Will this do
the trick? What exactly does the current sessions record? Any info would be
great. Thanks!

-Frank


0
joblow (3)
1/30/2004 11:12:34 PM
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Also should i be worried that there are users (that i don't know) connecting
to my Exchange 2000 SMTP? I see people connecting to my Exchange server via
the "Current Sessions" module. Thanks!

"Frank Oh" <joblow@hotmail.com> wrote in message
news:%23A1TIZ45DHA.2556@TK2MSFTNGP09.phx.gbl...
> In the past week we have been getting a lot of spam mail. And just like
all
> you admins out there.. GGGRRRRAAAAHHHHH!!! It's weird because they are
> coming and going from people that do business with us. Not only are they
> sending us spam, we are sending them spam as well. I checked to see if the
> relay settings were correct. Read http://support.microsoft.com/?id=310380
> and set everything up as they said to do. I unchecked the "Allow all
> computers with successfully authenticate to relay, regardless ..." Now i
> don't know if that was the way they were sending spam but i also am
logging
> the SMTP protocol on the exchange server. Now it's weird because when i go
> to the Current Sessions section under the Default SMTP Virtual Server i
> periodically see people that are connected that i think should not be. The
> user is some weird domain or ip address that when looked up are coming
from
> different parts of the world. How do i stop these guys from stop
connecting
> to my smtp server? I am willing to get rid of the smtp service all
together
> so the users will have to connect via vpn or use the webmail. Will this do
> the trick? What exactly does the current sessions record? Any info would
be
> great. Thanks!
>
> -Frank
>
>


0
joblow (3)
1/31/2004 12:51:32 AM
Try http://www.abuse.net/relay.html
Also review http://www.mail-abuse.org/tsi/ar-fix.html#exchange
http://www.ordb.org/faq/#usage_iis

"Frank Oh" <joblow@hotmail.com> wrote in message
news:OzbPdQ55DHA.3360@tk2msftngp13.phx.gbl...
> Also should i be worried that there are users (that i don't know)
connecting
> to my Exchange 2000 SMTP? I see people connecting to my Exchange server
via
> the "Current Sessions" module. Thanks!
>
> "Frank Oh" <joblow@hotmail.com> wrote in message
> news:%23A1TIZ45DHA.2556@TK2MSFTNGP09.phx.gbl...
> > In the past week we have been getting a lot of spam mail. And just like
> all
> > you admins out there.. GGGRRRRAAAAHHHHH!!! It's weird because they are
> > coming and going from people that do business with us. Not only are they
> > sending us spam, we are sending them spam as well. I checked to see if
the
> > relay settings were correct. Read
http://support.microsoft.com/?id=310380
> > and set everything up as they said to do. I unchecked the "Allow all
> > computers with successfully authenticate to relay, regardless ..." Now i
> > don't know if that was the way they were sending spam but i also am
> logging
> > the SMTP protocol on the exchange server. Now it's weird because when i
go
> > to the Current Sessions section under the Default SMTP Virtual Server i
> > periodically see people that are connected that i think should not be.
The
> > user is some weird domain or ip address that when looked up are coming
> from
> > different parts of the world. How do i stop these guys from stop
> connecting
> > to my smtp server? I am willing to get rid of the smtp service all
> together
> > so the users will have to connect via vpn or use the webmail. Will this
do
> > the trick? What exactly does the current sessions record? Any info would
> be
> > great. Thanks!
> >
> > -Frank
> >
> >
>
>


0
Greg
1/31/2004 2:43:49 AM
You aren't relaying - and you're seeing connections from servers that are
trying to send mail TO your server, not THROUGH it.

Disabling the SMTP service will result only in your server being unable to
receive mail. What do you have open in your firewall right now? Have remote
users use VPN or OWA to get access to mail outside the office - don't open
up the RPC ports to allow them to connect otherwise...


Frank Oh wrote:
> In the past week we have been getting a lot of spam mail. And just
> like all you admins out there.. GGGRRRRAAAAHHHHH!!! It's weird
> because they are coming and going from people that do business with
> us. Not only are they sending us spam, we are sending them spam as
> well. I checked to see if the relay settings were correct. Read
> http://support.microsoft.com/?id=310380 and set everything up as they
> said to do. I unchecked the "Allow all computers with successfully
> authenticate to relay, regardless ..." Now i don't know if that was
> the way they were sending spam but i also am logging the SMTP
> protocol on the exchange server. Now it's weird because when i go to
> the Current Sessions section under the Default SMTP Virtual Server i
> periodically see people that are connected that i think should not
> be. The user is some weird domain or ip address that when looked up
> are coming from different parts of the world. How do i stop these
> guys from stop connecting to my smtp server? I am willing to get rid
> of the smtp service all together so the users will have to connect
> via vpn or use the webmail. Will this do the trick? What exactly does
> the current sessions record? Any info would be great. Thanks!
>
> -Frank


0
lanwench (7567)
1/31/2004 3:00:16 AM
Reply:

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