[Mimedefang] Blocking Dictionary Attacks

Petra Humann humann at tcs.inf.tu-dresden.de
Thu Jun 11 01:24:44 EDT 2009

Do you know the sendmail badrcpt_shutdown patch?

After an defined number of bad recipients the SMTP session terminates:
"Possible SMTP RCPT flood, shutting down connection."

Petra Humann
Mail:    humann at tcs.inf.tu-dresden.de
WWW:     http://wwwtcs.inf.tu-dresden.de/~humann/

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