R.Smits wrote: > Hello, > > Is there something I can do that our company addresses cannot be used > for sending spam ? Is DKIM an answer ? > A lot of our users get "delivery failed" messages. So a spammer is > sending spam with our addresses :-( > > A difficult problem I think ? > > Greetings... Richard Smits
There is really nothing that you can do to prevent spammers from using your address. You can do things like DKIM and SPF to attempt to validate good mail from your domain, but this relies on the receiving server doing the necessary checks. We are having the same problem. One of our addresses has been used consistently by spammers for the past couple of years. Recently the problem has gotten much worse. This address has received over 57,000 bounce messages in the past two weeks! I now have a rule in my mail server to detect and drop these messages. -- Bowie
