On 15 Nov 2000, at 17:52, raphaelb wrote: > Since two days, somebody on Internet, send a lot of mail (every 2
> minutes) to an unavailable mailbox (@hotmail.com or @yahoo.com) using
> as FROM an unavailable address (always different set of random letters
> as local-part) from our domain. Therefore, the mailserver of hotmail
> or yahoo send a error mail for unavailable recipient to our mailserver
> that try to deliver it but the recipient doesn't exist too. Then the
> mail is frozen because the from address in the envelope of the mail
> sent bye the mail-daemon of yahoo or hotmail is equal to '<>' !
> How is it possible to prevent this kind of mail bombing ?
> PS : I hope that my explanation is not too confused ?
I can support you, at least morally. I had this very problem two
weeks ago, but at that time i got also the server (both primary and
secondary) hogged by about 80000 message in a few hours. I think
only way to cope with this is jujst forrward any massage with illegal
addresses to /dev/null Put what about policy ?
Leonardo Boselli
nucleo informatico e telematico
Dipartimento Ingegneria Civile
Universita` di Firenze
V. S. Marta 3 - I-50139 Firenze
tel +39()0554796431 fax +39()055495333
http://www.dicea.unifi.it/~leo
