[IMail Forum] spammers (I hate them)

[Damian Sanguine]

Hi all,   I'm beggining to find this kind of "attack" into my logs:   05:27 04:22 SMTPD(0904026E) [216.53.218.171] MAIL From: <[EMAIL PROTECTED]> 05:27 04:22 SMTPD(0904026E) [216.53.218.171] RCPT To:<[EMAIL PROTECTED]> 05:27 04:22 SMTPD(0904026E) [216.53.218.171] ERR mail.fis.com invalid user <[EMAIL PROTECTED] 05:27 04:22 SMTPD(0904026E) [216.53.218.171] RCPT To:<[EMAIL PROTECTED]> 05:27 04:22 SMTPD(0904026E) [216.53.218.171] ERR mail.fis.com invalid user <[EMAIL PROTECTED] 05:27 04:22 SMTPD(0904026E) [216.53.218.171] RCPT To:<[EMAIL PROTECTED]> 05:27 04:22 SMTPD(0904026E) [216.53.218.171] ERR mail.fis.com invalid user <[EMAIL PROTECTED] 05:27 04:22 SMTPD(0904026E) [216.53.218.171] RCPT To:<[EMAIL PROTECTED]> 05:27 04:22 SMTPD(0904026E) [216.53.218.171] ERR mail.fis.com invalid user <[EMAIL PROTECTED] . .   They try with hundred of email address until they get one valid email address.   Is there any way to avoid this? I heard about limiting the number of persons in the TO: clause. Does this work good? how should I setup that? What happen if someone do this? will be rejected?   Thank you very much, Damian