torsdag 02 mars 2006 19:19 skrev Gururajan Ramachandran:
> If a standard email address becomes used extensively
> by spammers and virus/worm emailers what can be done
> about it? For example, an address like
> sales@??? gets hijacked and generates
> many bounce back emails. Can anything be done about
> this via exim, for example? Or is the only option to
> change the email address and notify all legitimate
> contacts about the changed email address??
Late answer:
1. Tell clueless mail administrators around the world not to accept mail and
bounce later.
2. Publish an SPF record. It won't help against the clueless mail admins but
it won't hurt and it will tell the clueful ones that the spam is not sent by
you.
3. Use some form of signed envelope sender address.
See
http://www.tldp.org/HOWTO/Spam-Filtering-for-MX/collateral.html and
http://www.tldp.org/HOWTO/Spam-Filtering-for-MX/exim-sign.html
2 and 3 require all outgoing mail to be sent from the same servers.
--
Magnus Holmgren
