SPF is great. If you arent using it - you should. It only gets better as more people adopt it.
On Mon, Oct 20, 2008 at 8:14 AM, Beckett, William (Bill) <[EMAIL PROTECTED]> wrote: > So no good solution...yet > > -----Original Message----- > From: Micheal Espinola Jr [mailto:[EMAIL PROTECTED] > Sent: Monday, October 20, 2008 8:04 AM > To: MS-Exchange Admin Issues > Subject: Re: Stopped being spoofed > > Implement sender authentication mechanisms such as SPF and Sender ID. > Thats what they are for. Of course, it depends on if the recipient is > using SPF as well. But it absolutely helps. Be sure to use "-all" in > the authentication string to enforce a rejection. "~all" in many cases > will not cause the forged message to be rejected, unless the anti-spam > application has been tweaked to do so. I *will* reject a ~all, but > many products wont by default or wont at all. > > Beyond that, you are looking at getting into anti-spam methodologies > that involve Message-ID tracking and other header scrutiny methods > that aren't truly proved or perfected yet. > > > > On Mon, Oct 20, 2008 at 7:37 AM, Beckett, William (Bill) > <[EMAIL PROTECTED]> wrote: >> What is the best methodology to prevent user email addresses being > spoofed >> and having NDRs being returned to those accounts? I know we can't > prevent >> the spoofing but is there no way to stop the NDRs? >> >> >> > > > > -- > ME2 > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ > ~ http://www.sunbeltsoftware.com/Ninja ~ > > ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ > ~ http://www.sunbeltsoftware.com/Ninja ~ > -- ME2 ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
