Solved

Block or redirect 'Undisclosed Recipient'  Email addresses

Posted on 2001-06-11
5
1,859 Views
Last Modified: 2008-01-09
We receive spam with the recipient showing as "Undisclosed Recipient' in the address, yet it is being routed to the various individual's mailboxes.  Looking at the header info shows it as 'Undisclosed Recipient'.  

So...
1) Our Exchange 5.5 sp4 server is processing the email it is getting an address from somewhere.

2) How to block the 'Undisclosed Recipient' address when it doesn't show up in the header as an acceptable mail address?
0
Comment
Question by:RayBailey
  • 3
  • 2
5 Comments
 
LVL 4

Expert Comment

by:bluezoo7
ID: 6179105
"Undisclosed.Recipient" comes from Outlook Express users that BCC their recipients without putting anyone in the To field.

Block these messages as you would any other message. If you have a way to block messages with no one in the To field, this would be your best bet.

Check out this article from MS on the issue:

http://support.microsoft.com/support/kb/articles/Q250/6/92.ASP?LN=EN-US&SD=gn&FR=0&qry=undisclosed%20recipient&rnk=1&src=DHCS_MSPSS_gn_SRCH&SPR=MSALL

BZ7
0
 

Author Comment

by:RayBailey
ID: 6181262
This answer does not give me any info on how to block any incoming SMTP message with an empty 'To:' from Exchange 5.5  If Exchange 5.5 cannot do this without a helper program the answer should state so.
0
 
LVL 4

Expert Comment

by:bluezoo7
ID: 6182513
My apologies for not being clear. To my knowledge, you cannot block mail based on the To field without 3rd-party tools.

Check out Mail Essentials (http://www.gfi.com/me/mailessentials.htm) and

MailSweeper (http://www.mailsweeper.com), aka MIMEsweeper.

BZ7
0
 
LVL 4

Accepted Solution

by:
bluezoo7 earned 200 total points
ID: 6182518
However, if you know the *sender* of the message, you can stop them this way:

MS KB article Q245465
http://support.microsoft.com/support/kb/articles/Q245/4/65.ASP?LN=EN-US&SD=gn&FR=0&qry=spam&rnk=11&src=DHCS_MSPSS_gn_SRCH&SPR=ECH

BZ7
0
 

Author Comment

by:RayBailey
ID: 6182558
Thanks for the input.  I was afraid that Exchange wouldn't be able to do blocking itself.  Seems to be the nature of the beast.

That is the problem with SPAM.  You never know what the address is.  But I could block a lot of it just on the BCC rule itself.

Thanks bluezoo7
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

We are happy to announce a brand new addition to our line of acclaimed email signature management products – CodeTwo Email Signatures for Office 365.
Marketers need statistics and metrics like everybody else needs oxygen. In this article we explain how to enable marketing campaign statistics for Microsoft Exchange mail.
In this video we show how to create an Accepted Domain in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Mail Flow >> Ac…
The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question