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Fork of mailbrute.c by axess
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This is a fork of mailbrute.c, a program that launches a "RCPT TO:"-based dictionary attack on an SMTP server in an attempt to enumerate usernames.

The original mailbrute.c was written in 1999 by axess ( of the old b0f (buffer0verflow) security research group. Since 2000 it has lived at, and since 2003 a copy has also lived at because it was referenced by the O'Reilly book "Network Security Assessment".


2013-09-22: [mjb2010] Only print the "Recipient ok" response, not the whole 500-char receive buffer.

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