So basically no one should be using catch-all mailboxes?

On 1/21/07, Alexey Loukianov <[EMAIL PROTECTED]> wrote:

George Sweetnam wrote:
> You shouldn't set the catchall to bounce though... select delete.  The
> dictionary attacks will harvest the valid users if you select bounce!

Agreed.
Accordingly to the latest SMTP/MTA RFCs, all mail, directed to the
non-existing addresses should be bounced in SMTP session. To prevent
harvest attacks SMTP daemons may implement tarpeting.

In case catchall address is used, NO bounces should be sent back? but
RFCs recommends against using catchall, as it makes your mailserver act
as a "black hole".

Violating the rules above will shortly result in blacklisting your
server by services like SpamCop and RFC-Ignorant.

--
Best regards,
Alexey Loukianov                          mailto:[EMAIL PROTECTED]
System Engineer,
IT Department,
Lavtech Corp.



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