Exchange Server TechCenter >
Exchange Server Forums
>
Anti-virus/Anti-spam
>
Exchange 2003 server - sending spamming from my IP
Exchange 2003 server - sending spamming from my IP
- Hi,
I have Exchange 2003 server installed on a Windows Sb 2003 server. (network includes 25 desktops & 10 home worker VPN laptops)
The exchange server is setup to send emails from the server directly but Incoming emails are downloaded using POPbeamer from a outside POP3 mail server.
last week I had a real problem with Spamming from our server to outside. So outside spam tracking servers blocked our IP including hotmail.
So we couldnt send emails most of domains.
What i did was unpluged all the machines from the network & run the Mcafee & spybot to remove every unwanted thinng including PUPs detected on the machines.
Our IP was blocked from more than 10 spam tracking server last friday. Now its down to 03 servers. So its getting better.
If any one could tell me how to avoide happen this again?
Is there any way to track what really happen last week? i was looking for some Logs but couldt found.
I am not an expert on exchange but I have an idea how things happening on the Exchange.
Thanks
Appreciate any help
Answers
- Check if your server is open for relay. http://www.petri.co.il/preventing_exchange_2000_2003_from_relaying.htm
Also check the SMTP log to track any specific IP within your domain is doing this. Run a full scan on all the machines for any unwanted (virus etc ) ius doing this.
Raj- Marked As Answer byElvis Wei -MSFTMSFT, ModeratorFriday, November 13, 2009 6:50 AM
- 1. First check if your server is not acting as open relay.
How to troubleshoot mail relay issues in Exchange Server 2003 and in Exchange 2000 Server
http://support.microsoft.com/kb/895853/en-us
2. When this happens run EXMON to see which client is sending excessive Traffic to net
Using the Microsoft Exchange Server User Monitor (ExMon) tool
3. Make sure exchange server is installed with Antispam/Antivirus for exchange as well as file level scanner.
regularly update the AV definitions on Exchange servers and desktops
Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|- Marked As Answer byElvis Wei -MSFTMSFT, ModeratorFriday, November 13, 2009 6:50 AM
- Yeah, check your system for viruses. I'll suggest you to use NOD32. Also to prevent your mail was recognized like spam try to use this .
Regards!- Marked As Answer byElvis Wei -MSFTMSFT, ModeratorFriday, November 13, 2009 6:50 AM
All Replies
- Check if your server is open for relay. http://www.petri.co.il/preventing_exchange_2000_2003_from_relaying.htm
Also check the SMTP log to track any specific IP within your domain is doing this. Run a full scan on all the machines for any unwanted (virus etc ) ius doing this.
Raj- Marked As Answer byElvis Wei -MSFTMSFT, ModeratorFriday, November 13, 2009 6:50 AM
- 1. First check if your server is not acting as open relay.
How to troubleshoot mail relay issues in Exchange Server 2003 and in Exchange 2000 Server
http://support.microsoft.com/kb/895853/en-us
2. When this happens run EXMON to see which client is sending excessive Traffic to net
Using the Microsoft Exchange Server User Monitor (ExMon) tool
3. Make sure exchange server is installed with Antispam/Antivirus for exchange as well as file level scanner.
regularly update the AV definitions on Exchange servers and desktops
Vinod |CCNA|MCSE 2003 +Messaging|MCTS|ITIL V3|- Marked As Answer byElvis Wei -MSFTMSFT, ModeratorFriday, November 13, 2009 6:50 AM
- Yeah, check your system for viruses. I'll suggest you to use NOD32. Also to prevent your mail was recognized like spam try to use this .
Regards!- Marked As Answer byElvis Wei -MSFTMSFT, ModeratorFriday, November 13, 2009 6:50 AM
