Re: [IMail Forum] Spoof problem?

[Matrosity Tech Support]

Your clients will need to use their own ISP's smtp service (recommended) or use yours with SMTP Authentication. Bill Foresman Matrosity Hosting www.matrosity.com 850-656-2644 Todd Richards wrote: Thanks, everyone, for your feedback. Jeff mentioned the .zip virus file, which is a lot of what it is (seen through the returned messages). It just started today but regardless, if it can happen at random, I worry about what will happen when someone really tries. Michael, I had wondered about being an open relay. However, if I choose relay for addresses, how are my remote people going to be able to send? I'm talking about a server that has 50 virtual domains. I know that's probably the dumbest question asked today (or maybe longer!) but I just don't know. This was thrown at me, as is, and I'm learning as I go. I really do appreciate your feedback! Todd -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Michael Graveen Sent: Monday, May 02, 2005 8:38 PM To: IMail_Forum@list.ipswitch.com Subject: Re: [IMail Forum] Spoof problem? At 04:53 PM 5/2/2005, you wrote: I've got an email address that I'm receiving "mail delivery failed" messages to - the problem is that I didn't send them. It appears that it is being used to spoof messages with virus attachments. It is a business address, so the image is not particularly favorable. I have not received this before today, and this is the second one (the first was a single email address). I'm assuming either my time has finally come, or someone is making an effort to exploit me. SMTP Security settings for this server are: Mail Relay Options: relay for local users only Allow remote mail to local groups (checked) Check valid sender (checked) Auto-deny possible hack attempts (checked) Disable SMTP "VRFY" command (checked) Any thoughts on what I should do? The returned message shows about 25 email addresses that were "invalid" so it is getting sent to a lot of people. Thanks for your help. Todd You should change your Mail Relay Option to either "No Mail Relay" or "Relay mail for addresses". Right now you're an open relay! Mike --- [This E-mail scanned for viruses by Declude Virus] To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/