[OT] spam and sendmail configuration

[Luis]

Hiya,

Check to see if your ISP provides an SPF option. It's not 100% but it 
does help!

Cheers,

Luis.



viktoras d. wrote:
> Sorry, this is quite OT, just I am desperately seeking an advice. Could 
> anyone please suggest a good resource on sendmail access file 
> configuration with exhaustive samples on fighting spammers (I googled, 
> found something, still looking for the "best" one). A few days ago I 
> started receiving lots of  spam with forged FROM address as if it was 
> sent from my own domain, which I think should be impossible because my 
> sendmail is configured to NOT relay anything, and I am using ISP's 
> mailing server to send my mails which is secure, password protected, and 
> so on... Tested my domain with 
> http://verify.abuse.net/cgi-bin/relaytest, it says all tests performed, 
> no relays accepted. Still I was receiving spam from "myself" and other 
> "domain users" each time with different name... Yesterday configured 
> sendmail's access list to reject any of those "alien names", and they 
> stopped appearing in my inbox, but today I received twice as much spam 
> from other sources and also from "myself". So, I would appreciate any 
> good advice on how to best deal with this problem at the mail server (on 
> Linux) level.
> 
> Is it possible to define more complex rules in the sendmail's access 
> file ? I know about blackhole service, just looking for other options.
> 
> Best wishes
> Viktoras
> 
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