Re: Majordomo and spoofers

["Tom Klem" <thewiz lvcablemodem com>]

An unknown MickeySoft disrupter is claiming to be a legit address on my web service MX, which also happened to be in the list of authorized posters. It then sent its message to the majordomo list, but because the attached virus was over the limit in byte size, the message bounced.

The transaction looks like this

spoofed legit address in poster approved list -----------------> legit closed list on my server

Tom Klem


*********** REPLY SEPARATOR  ***********

On 10/30/2003 at 6:57 PM Gordon Messmer wrote:

>Tom Klem wrote:
>> Is there any way to secure a list in Majordomo to prevent address
>spoofing?
>
>Offhand, I'd say no.  Are you having trouble with someone sending mail 
>with your list address as the return address, or sending messages to the 
>list with spoofed sender addresses?
>
>> Can I limit to a particular network address too?
>
>Probably, if you pass incoming mail to procmail first.  I don't know 
>enough about majordomo to know if it can impose such limits natively.
>
>
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