http://www.dnsreport.com/tools/dnsreport.ch?domain=Faranheit.com 1. As some one else has posted, you MUST have a correct REVDNS record for the IP address. This means you have to have a static IP address. If you can not afford a static IP address, you should look into using a 3rd party as your MX gateway. Many anti-spam filter systems will add weight to a REVDNS that is a plain Jane DSL or cable REVDNS record so even if your dynamic IP has a REVDNS, it will be considered correct and it will show that it is dynamic and it will be counted against you. 2. CNAME's are not allowed when it comes to email servers! Period. End of story. 3. A Linksys router is not a firewall no matter who tells you what. You must have a properly configured firewall in front of your email server or it will be hacked and/or used for reverse DOS attacks and/or flooded with incoming spam and virus laden email and/or subject to DOS attacks. 4. Bringing up an email server on the internet is no light subject and must be handled with extreme caution and due diligence in both configuration and protection. My recommendation, truthfully: Contact a third party to be your MX gateway and only except email from that company and even better only send outgoing email through that company by way of smart host configuration. Yes, I provide those services but I do not care so much as who you use but rather use some one as your gateway. John T eServices For You "Seek, and ye shall find!" -----Original Message----- From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Ara Avvali Sent: Tuesday, October 03, 2006 11:39 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: use dynamic ip address for mail server Faranheit.com _____ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Howard Rappaport Sent: Tuesday, October 03, 2006 11:35 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: use dynamic ip address for mail server Should work; what is the domain? From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Ara Avvali Sent: Tuesday, October 03, 2006 2:22 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] use dynamic ip address for mail server Greetings, We want to host a mail server at a DSL line which is dynamic. Getting static will cost a lot of money at the location so we got a linksys router that support dyndns.org and created a record for domain.dyndns.org. Put the router in front of mail server and forwarded tcp 25 to mail server. Then we create a CNAME in DNS server that mail.domain.com points to domain.dyndns.org. Then there is an MX record with 10 priority mail.domain.com. Would this work? It is almost 24 hours and dnsreport still says there is no proper mx record configured. I appreciate any help on this one