[Mimedefang] Spam sneaking in through secondary MX??

[Marcelo Souza]

Hi,

On Fri, 11 Apr 2003, James Whittington wrote:

|This may be a bit off topic but I've noticed spam passing through an
|SMTP gateway that is a fallback to the fallback gateway.  I have weights
|of 10, 20 & 30 on 3 MX exchanges.  It seems unlikely that the 10 & 20
|weight MX records would be unresponsive, which is what I thought would
|have to happen for mail to fallback to the 3rd exchange.  The third
|gateway by the way does not do Spam or virus filtering.  Do spammers
|purposely seek out secondary exchanges to use or are my other two
|gateways failing and mail going to the third one?

	If your 2nd and 3rd MX are configured to forward the menssages to
primary MX, and if you can put MD running on it with a basic setup, you
could use the "PRESERVING RELAY INFORMATION" explained in the man of
mimedefang-filter.

- Marcelo

|Inquiring minds want to know...
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|_______________________________________________
|
|James Whittington
|Systems Administrator
|
|Excelorant, LLC
|A TM Floyd Affiliate Company
|1800 St. Julian Place
|P.O. Box 8263
|Columbia, SC 29202
|
|803.765.1310 | Phone
|800.780.1170 | Toll Free
|803.765.1431 | Fax
|
|jwhittington at excelorant.com
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- Marcelo