How do I disable the EXPN and VRFY Commands? SMTP problems: EXPN and VRFY commands Description smtp (25/tcp)
The remote SMTP server answers to the EXPN and/or VRFY commands. The EXPN command can be used to find the delivery address of mail aliases, or even the full name of the recipients, and the VRFY command may be used to check the validity of an account. Your mailer should not allow remote users to use any of these commands, because it gives them too much information. ------------------------------------------------------------------------------ [This E-mail was scanned for viruses by Declude Virus Scanner on mail.nfti.com] 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/
