With regard to placing the imail server behind the existing firewall in the office what items need addressing?
Do I have to alter my DNS entry for the imail server so that it when it resolves the MX records it points to the firewall and then create rules on the firewall to direct these requests towards the IMAIL box? Do I need to create a rule for each port required by IMAIL? I really want to use the web messaging and pretty much all the functions of IMAIL as I have set up IMAIL before and staff thought it was fantastic to be able to access mail from outside the office. The same goes here. Can IMAIL operate properly behind the firewall in my situation? My problem has just got worse as the old email server has given up rebooting so I have to get this thing sorted this weekend and the option of buying any expensive stuff is non existent. Many thanks Stephen Pokora [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of R. Scott Perry Sent: 06 February 2004 12:30 To: [EMAIL PROTECTED] Subject: Re: [IMail Forum] The use of a firewall >We are trying out Imail Express and I have question regarding the use of a >firewall. Our main network is currently behind a firewall and it is >intended that the Imail server will be placed outside with its static IP >address. Why do you want the mailserver outside of the firewall? Firewalls are designed to help keep your computers safe. You have the firewall, so I would recommend using it. >Should I rely on port blocking using TCP/IP filtering or should I install >a McAfee or Norton personal firewall? I wouldn't suggest McAfee or Norton, even if you do have to use a software firewall. They are *personal* firewalls. If you must keep the mailserver outside of the firewall, you might want to use a server-grade software firewall such as BlackIce Server. >We are only a very small office and we can t afford any more >equipment. Is there a clever way of using our current hardware firewall >without compromising the internal network? Firewalls are designed for situations like this. For example, we have a firewall here that all traffic goes through -- no computer is outside the firewall. The firewall is set up so that any incoming packets to port 25 are allowed through. That way, incoming mail will reach the mailserver. You will need to open up other ports if you have other incoming traffic to the mailserver (110 for POP3, for example; see http://support.ipswitch.com/kb/IM-19980513-ES01.htm for all the ports that IMail may use, and see which of them you need). -Scott --- Declude JunkMail: The advanced anti-spam solution for IMail mailservers since 2000. Declude Virus: Catches known viruses and is the leader in mailserver vulnerability detection. Find out what you've been missing: Ask for a free 30-day evaluation. --- [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/ 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/
