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all groups > iis smtp nntp > recent posts

Re: More questins on SMTP spam attacks.
Posted by Sanford Whiteman at 4/18/2008 1:31:19 AM
> A user comes into my SMTP server, using a userid and password. The > userid/password is no longer valid (it was at one time, but not > anymore). > > The spammers still come to the SMTP server, and (attempt) to send > emails. The SMTP server accepts the emails, then bit-buckets them. That's...more >>


Re: More questins on SMTP spam attacks.
Posted by PeterD at 4/17/2008 9:26:36 PM
On Thu, 17 Apr 2008 14:53:35 -0400, "Sanford Whiteman" <swhitemanlistens-software@cypressintegrated.com> wrote: >> Well, that's not a terribly useful suggestion since this is how IIS >> SMTP is built by MSFT. > >No, it's not! > >If a session is not allowed to relay to a domain -- because i...more >>

Re: More questins on SMTP spam attacks.
Posted by Sanford Whiteman at 4/17/2008 2:53:35 PM
> Well, that's not a terribly useful suggestion since this is how IIS > SMTP is built by MSFT. No, it's not! If a session is not allowed to relay to a domain -- because it is not authenticated via ESMTP AUTH and does not come from pre-authenticated IP address -- it _will not be allowed to...more >>

Re: More questins on SMTP spam attacks.
Posted by PeterD at 4/17/2008 8:18:53 AM
On Wed, 16 Apr 2008 00:11:02 -0400, "Sanford Whiteman" <swhitemanlistens-software@cypressintegrated.com> wrote: >> The spammer can't send emails, they don't get relayed, but the sender >> is never notified that the attempt fails. There was logic behind that >> (it allowed SMTP to mask a userid...more >>

Re: More questins on SMTP spam attacks.
Posted by Sanford Whiteman at 4/16/2008 12:11:02 AM
> The spammer can't send emails, they don't get relayed, but the sender > is never notified that the attempt fails. There was logic behind that > (it allowed SMTP to mask a userid/password attack, since it never told > that the user's attempt failed!) The *only* reason you should be accepting...more >>

Re: Unable to create new SMTP virtual server
Posted by Rummy Beer at 4/15/2008 8:06:01 AM
No, I haven't because that will probably solve this particular error, but it'll bring back the issue that causes that the event log of my server fills up with "Attempted to read or write protected memory" events. What I need to find out is if MS knows about this buggy hotfix that they post ...more >>

Re: More questins on SMTP spam attacks.
Posted by PeterD at 4/14/2008 12:54:56 PM
On Mon, 14 Apr 2008 12:17:03 -0400, "Sanford Whiteman" <swhitemanlistens-software@cypressintegrated.com> wrote: >> Right from teh box, if a user fails to authenticate, SMTP accepts teh >> message from teh user but doesn't send it. > >Not if correctly configured. A 550 error will be returned ...more >>

Re: More questins on SMTP spam attacks.
Posted by Sanford Whiteman at 4/14/2008 12:17:03 PM
> Right from teh box, if a user fails to authenticate, SMTP accepts teh > message from teh user but doesn't send it. Not if correctly configured. A 550 error will be returned if the recipient domain is not allowed for relay, and any subsequent DATA command will be discarded. What setti...more >>



More questins on SMTP spam attacks.
Posted by PeterD at 4/14/2008 8:52:34 AM
Right from teh box, if a user fails to authenticate, SMTP accepts teh message from teh user but doesn't send it. This creates excessive traffic to teh server when a compromised userid/password has been corrected--the spammers think the spam is continuing OK, and keep sending it. Anyone know o...more >>

Re: Disable badmail or NDR?
Posted by Sanford Whiteman at 4/13/2008 1:54:55 AM
> Problem is that thousands of spams were sent with his account, and > now they are bouncing and bouncing and bouncing... To be sure. Of course, the same spam could have been sent through any server; his (E)SMTP credentials need not have been compromised to do so. Naturally, it increases...more >>

Re: Disable badmail or NDR?
Posted by PeterD at 4/12/2008 6:17:44 PM
On Sat, 12 Apr 2008 00:40:44 -0400, "Sanford Whiteman" <swhitemanlistens-software@cypressintegrated.com> wrote: >> Any (easy) way to disable badmail or the NDR in Server 2003 SMPT? > >Disable Badmail? Just clear the files out nightly if you don't to see >them, but Badmail is the double-bou...more >>

Re: Disable badmail or NDR?
Posted by Sanford Whiteman at 4/12/2008 12:40:44 AM
> Any (easy) way to disable badmail or the NDR in Server 2003 SMPT? Disable Badmail? Just clear the files out nightly if you don't to see them, but Badmail is the double-bounce archive (not simple bounces), and in normal operation you should only see mail in there whose sender and recipient...more >>

Re: email not being sent to SMTP server
Posted by Sanford Whiteman at 4/12/2008 12:38:02 AM
> I've checked the properties of the virtual SMTP server and there are no > restrictions on who can send email to this server. Even in a vanilla Windows install, there are other areas to check if you see connection resets, in addition to the IIS SMTP access control list: - Windows firewa...more >>

Re: Unable to create new SMTP virtual server
Posted by Sanford Whiteman at 4/12/2008 12:32:36 AM
> The SMTP Virtual server is working fine for now, but I wanted to > change some properties as a part of a security policy and I don’t > know how. Have you swapped in the old version of adsiis.dll? It does seem like you've pinpointed the offending file. --Sandy -------------...more >>

email not being sent to SMTP server
Posted by Marcus Dempsey at 4/10/2008 7:54:00 AM
Hi, I have 3 VLANs configured on my domain, one VLAN has the web sevrer which is configured with SMTP and routes mail fine, another VLAN which can send email to the web server and get its mail processed, however I have the last VLAN which also sends email to this web server but doesnt get p...more >>

Re: Unable to create new SMTP virtual server
Posted by Rummy Beer at 4/8/2008 2:09:01 PM
Hi Sandy and Volz I'm having exactly the same problem mentioned and more: after applying the hotfix I can’t manage the list of computers that may connect and relay through the default “SMTP Virtual Server”, because after doing the changes to the list of IP and pressing “Apply”, I ...more >>

RE: SMTP Relay Server or Smart Host - Not working
Posted by sjs at 4/8/2008 10:25:01 AM
I figured it out, it was my antivirus software blocking port 25... "sjs" wrote: > I've got a small subnet (192.168.0.x) made up of two computers and a > production subnet (10.1.1.x) where all users and my Exchange server reside. > "Bridging" the two networks sits a server that it dual-hom...more >>

SMTP Relay Server or Smart Host - Not working
Posted by sjs at 4/8/2008 8:20:02 AM
I've got a small subnet (192.168.0.x) made up of two computers and a production subnet (10.1.1.x) where all users and my Exchange server reside. "Bridging" the two networks sits a server that it dual-homed to both networks (two nics: 192.168.0.1 and 10.1.1.100). Sitting on this server is SQL...more >>

Disable badmail or NDR?
Posted by PeterD at 4/7/2008 8:15:01 PM
Any (easy) way to disable badmail or the NDR in Server 2003 SMPT? (This Is Not Exchange Server!) ...more >>

Re: IIS7 and Default SMTP Virtual Server
Posted by Bernard Cheah [MVP] at 4/6/2008 1:10:11 PM
LOL. great... I have ping the product team about this as well. kinda annoying err msgs. -- Regards, Bernard Cheah http://www.iis.net/ http://msmvps.com/blogs/bernard/ "Bassilian, Ron" <Ronb@es.tv> wrote in message news:EF49A0CC-FE91-4CCA-BFDC-C4A9F109BDEA@microsoft.com... > When I ...more >>

Virtual SMTP server donŽt send to hotmail
Posted by Sanford Whiteman at 4/5/2008 2:34:59 PM
> hotmail o yahoo, if I try to send to another domains I don´t have > problems, > the id problem in event viewer is 4006 That's a general connection failure and doesn't on its own provide SMTP- or other TCP-level diagnosis. Check your outbound SMTP logs for these connections to see whe...more >>

Re: 2003 smtp won't receive email
Posted by Sanford Whiteman at 4/5/2008 2:31:32 PM
> When I try to send an email to the account from yahoo (send to > name@domain.com ) no message ever comes through or goes into the mailbox. Never the POP3 part (which is secondary to SMTP). Do you see the message in your SMTP logs? That is the very first place to look. --Sandy ...more >>

Re: pop3 and smtp ports
Posted by Sanford Whiteman at 4/5/2008 2:30:41 PM
> pop3 =3D 995 > smpt =3D 465 If you change the SMTP port, you will not be able to receive mail from t= he = Internet. Remote mail servers will only connect to WKP TCP 25. You can change the POP3 port right in the management utility, = Server-Properties. --Sandy --------...more >>

Re: IIS7 and Default SMTP Virtual Server
Posted by Bassilian, Ron at 4/4/2008 6:23:30 PM
When I try to change the setting for allowed SMTP servers under Access Tab -> Relay, I get the "unspecified error" error. At any rate, I wound up changing some settings in Sharepoint (from automatic to manual), now it's working fine, and I'm getting e-mails into the server in question. "Be...more >>

Re: IIS7 and Default SMTP Virtual Server
Posted by Bernard Cheah [MVP] at 4/3/2008 12:38:50 PM
I don't know sharepoint. which setting you are trying to set and give u the error? -- Regards, Bernard Cheah http://www.iis.net/ http://msmvps.com/blogs/bernard/ "Ron B." <RonB@discussions.microsoft.com> wrote in message news:1D195C9F-4462-417E-A996-4F0F85C5579C@microsoft.com... >I...more >>

Re: IIS7 and Default SMTP Virtual Server
Posted by Bernard Cheah [MVP] at 4/2/2008 2:12:46 PM
Ya. got that as well. but the config actually made into the system, right? something to do with the old config system, should not relate to firewall at all. -- Regards, Bernard Cheah http://www.iis.net/ http://msmvps.com/blogs/bernard/ "Ron B." <RonB@discussions.microsoft.com> wrot...more >>

Re: IIS7 and Default SMTP Virtual Server
Posted by Bernard Cheah [MVP] at 4/2/2008 9:48:44 AM
Do you install the IIS 6 Management console? the SMTP is not manage in the new IIS 7 Manager, but rather then old one. check the component setup for IIS. -- Regards, Bernard Cheah http://www.iis.net/ http://msmvps.com/blogs/bernard/ "Ron B." <RonB@discussions.microsoft.com> wrote in m...more >>

Re: IIS7 and Default SMTP Virtual Server
Posted by Ron B. at 4/2/2008 9:48:01 AM
I don't think so. I have to cancel out, and when I go back in, the settings are back to where they used to be. It may help to know that I'm trying to set this up so I can enable incoming e-mail on sharepoint v3, which sits on this server. But when I try to set up an e-mail for a sharepoin...more >>

Re: Can't login to Pop3 Server
Posted by mukwe26@gmail.com at 4/2/2008 2:41:00 AM
I should add that I changed to a USB 56k modem from an internal 56k modem....more >>

Can't login to Pop3 Server
Posted by mukwe26@gmail.com at 4/2/2008 2:21:59 AM
I recently changed my dail-up modem that we use to connect to our isp and now users on the LAN can't log on to their accounts. We use windows 2003 sever. Any ideas on how I can fix this....more >>


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