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: [email protected] 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/
