0
votes
1answer
62 views

On Exchange Server enable require that all senders are authenticated on all groups

I have a large number of Distribution Groups on my Exchange 2007 server. I am starting to get spam addressed to these group addresses and would like to enable the "Require all senders are ...
0
votes
1answer
104 views

Exchange 2007: User/Computer Sending SPAM

This question is an extension in some ways of this one: Exchange 2007 server send out spam We're running Exchange 2007. We have an end user who received an Exchange bounce back (generating server is ...
1
vote
1answer
83 views

Mail From Outlook/Exchange Sent to Destination Spam

I have a unique problem and I am hoping someone may have some direction to provide me. We have a Windows environment with an Exchange 2007 Server. For some reason when a user sends an email from ...
1
vote
1answer
1k views

Header to redirect to Junk E-Mail folder?

For Exchange 2007/2010, is there a header I can set outside of the Exchange organization, that once that message reaches the Exchange org, it will automatically be classified as spam? The use case is ...
0
votes
0answers
57 views

My e-mail is recognized as spam Microsoft Exchange server

E-mail of one user in my organization is recognized as spam. I looked up few things and I realized that my SPF record is v=spf +all. Do I have to change my spf record to something else like v=spf mx? ...
0
votes
1answer
133 views

How to view Exchange safelist

I've been able to update the Exchange safelist based on the user mailbox safelist with: get-mailbox | where {$_.RecipientType -eq ...
1
vote
3answers
1k views

How do I bypass Exchange 2007 SenderID Spam filtering on mail coming from a particular domain

I have some emails which are been deleted as spam and the AgentLog files contains the section ... Sender Id Agent,OnEndOfHeaders,DeleteMessage,,MissingPRA,No valid PRA, I would like to configure ...
2
votes
1answer
749 views

Can I alter or analyse Exchange 2007 Content Filter Agent's scoring system?

I have a reasonably vanilla Exchange 2007 SP2 setup (Server Std. 2008) with a fairly liberal spam policy. I allow anything through with an SCL of 7 or lower and quarantine everything else. This lets ...
2
votes
3answers
3k views

Exchange 2007 Delivery Delayed (maybe need certificate?)

Last week, I setup a new domain and Exchange Server 2007 SP1. I created new accounts and mailboxes for my 30 users and imported all mail from their old domain to this new server. It's a Hub Transport ...
4
votes
2answers
94 views

Spam addressed to a sender but received by everyone else

Spam's been getting through Postini lately that's addressed to a recipient (bob@example.com) in the To: field and in the headers. While this isn't that strange -- we've had spam get through before -- ...
1
vote
2answers
80 views

Anti spam on Exchange 2007

I have just installed an exchange 2007 server. We are not using the edge server role. In Exchange 2007 are there enabled any out the box anti spam features? I can't see antyhing relating to anti spam ...
0
votes
3answers
259 views

Exchange 2007 ineffective spam filter

On a pretty clean 2007 setup, I'm seeing A LOT of mail with senders such as 0.0011a7f8@roman htyme@14009d3cb93848c 0-lz@14009d3cb93848c 0-5-1@home-4fd909062d 0-td@h109-187-48-125.dyn.bashtel.ru all ...
2
votes
3answers
937 views

Exchange 2007 NDRs

We have NDRs disabled on our Exchange 2007 server to prevent backscatter. Is there any way to enable NDRs only when messages exceed size limits? It can be frustrating for people when their messages ...
2
votes
2answers
2k views

Reject obviously spoofed messages in Exchange 2007 SP2

I have an Exchange 2007 SP2 server which happily accepts SMTP messages whose sender is SomeRandomString@mydomain.com and the recipient is SomeRealUser@mydomain.com; this leads to all sort of spoofing ...
0
votes
3answers
5k views

How do I lock down Exchange 2007 to accept email from a specific range of IP addresses only?

I have implemented a new Exchange 2007 server running on Server 2008 in our domain. We previously used Exchange 2003 running on Server 2003 and I had locked the Default SMTP Connector down so that it ...
2
votes
2answers
979 views

LDAP query for Barracuda

I have a barracuda spam firewall 300 that I just got installed the other day. I'm working on an LDAP query for using it with my exchange server. What i have so far is: (& ...
2
votes
1answer
1k views

Setting up a Barracuda Spam Filter

We have just purchased a Barracuda Spam Firewall 300, we have set it up but are having problems authenticating with our Exchange server (2007). I spoke to Barracuda about it and they said I need to ...
2
votes
5answers
428 views

Spam and anti-virus on Exchange 2007?

I've found a number of solutions. They all say that they're the best (of course they do!) but they all can't be so I'd like some impartial advice. I would like to know your experiences of spam and ...