cyrus accepts mails for "unknown users"

[Antoine Jacoutot]

On Wednesday 01 December 2004 04:42, you wrote:
> I'm runnung sendmail 8.12.3 with cyrusv2 local mailer (Debian woody
> standard package) and cyrus 2.1.17 (backport from
> http://people.debian.org/~hmh/). Today I had a heavy spam attack caused by
> the fact, that sendmail accepts mails for non existing users. EMails to
> unknown accounts on local domains (local-host-names) will be accepted and
> than bounced. Is there a way to stop/reject these mails at "rcpt to: user
> unknown"-point?

You can use virtusertable in sendmail.
ie:
user1 at domain.com user1
user2 at domain.com user2
user3 at domain.com user3
@domain.com error:5.1.1:550 User unknow

Or you can have a look at : "Real Time Cyrus Integration"
-> http://anfi.homeunix.net/sendmail/rtcyrus2.html

Antoine
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