That is the SMTP fixup. Disable it by entering "no fixup protocol smtp 25" into the config. Or use the PDM (on newer PIX's), which has an option to turn it off.
Dan Horne >>-----Original Message----- >>From: [EMAIL PROTECTED] >>[mailto:IMail_Forum-owner@;list.ipswitch.com] On Behalf Of R. >>Scott Perry >>Sent: Tuesday, November 05, 2002 10:51 AM >>To: [EMAIL PROTECTED] >>Subject: Re: [IMail Forum] Server Welcom Message through Firewall >> >> >> >>>I have an IMail 7.07 server running Declude Junkmail. The server sits >>>behind a >>>Cisco PIX firewall. If I telnet server 25 from inside the >>firewall I receive >>>a normal 220, however, from the outside, the 220 responds as >>all asterisks. >>> >>>I know this isn't an IMail problem, but was hoping someone >>might have a >>>quick answer for me. What, other than POP & SMTP ports, must >>be allowed >>>to pass through the firewall in order to receive a proper 220 Server >>>Welcome Message? >> >>Cisco's PIX firewall is not RFC-compliant. It is >>intentionally blocking >>the SMTP greeting. At least they have fixed the big bug >>(originally, there >>was a bug that would cause all "2"'s and "0"'s to come >>through without >>being blocked, reducing the value of the security measure). >> >>That may be part of their infamous "SMTP fixup" protocol, or >>there may be a >>separate option to disable the SMTP greeting blocking. >> >> -Scott >>--- >>Declude: Anti-virus, Anti-spam and Anti-hijacking solutions for >>IMail. http://www.declude.com >> >>--- >>[This E-mail was scanned for viruses by Declude Virus (http://www.declude.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/ --- [This E-mail scanned for viruses by Declude Virus] --- [This E-mail scanned for viruses by Declude Virus] 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/
