This is a theoretical question. My employer's mail server (sendmail) is configured to seemingly validate VRFYs and RCPT TO:s as illustrated in the [obviously munged] telnet session which follows: ----- c:\>telnet mail.example1.com 25 220 mail.example1.com ESMTP Sendmail 8.12.9/8.12.9; Sat, 21 Jun 2003 16:32:16 -0400 (EDT) ehlo test.com 250-mail.example.com Hello [EMAIL PROTECTED] [123.123.123.123], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-EXPN 250-VERB 250-8BITMIME 250-SIZE 30000000 250-DSN 250-ETRN 250-DELIVERBY 250 HELP vrfy [EMAIL PROTECTED] 252 2.1.5 <[EMAIL PROTECTED]> mail from:[EMAIL PROTECTED] 250 2.1.0 [EMAIL PROTECTED] Sender ok rcpt to:[EMAIL PROTECTED] 250 2.1.5 [EMAIL PROTECTED] Recipient ok quit 221 Closing connection. Good bye. -----
How can one emulate this behavior using IMail Server (any version), short of using the much-deprecated "nobody" alias? Disabling VRFY in IMail will not return the response that appears above (apparent validation). Moreover, even if one were to use the "nobody" alias, would the IMail response to "RCPT TO:[EMAIL PROTECTED]" be "Recipient ok"? I am certainly not advocating the use of the "nobody" alias. Rather, I am asking how to configure IMail so that it *seems* to accept all mail and silently drop messages to invalid recipients and respond to VRFYs so that it *seems* to validate non-existent recipients. The underlying idea is to fight address harvesters by returning "good" information no matter what they are trying to probe, thereby filling their list of "known-good" addresses with tons of actually invalid entries. Thanks in advance for any input, Guy -- Guy Isabel <[EMAIL PROTECTED]> To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
