> Or is it just a bad idea in general to do this and we will just have > to change the IP manually if one ISP goes down?
Being able to use the DNS MX algorithm for gatewayed domains is not a bad idea at all -- it's preferable to hard-coding a single MX route in HOSTS. However, to do this you have to stop using the "dumb" store-and-forward utility offered by HOSTS/Relay for Addresses and start actually using local virtual hosts. Set up real virtual hosts and populate their alias lists with recipient addresses supplied by your clients, then use DNS to rotate addresses. My feeling is that if a company is large enough to have dual local MXs in addition to your service, they're big enough to supply you with a list of their valid recipients. This is the way my exchange2aliases and ldap2aliases scripts work. Alternately, I'd recommend using a different platform (hint: MS SMTP) either for your MXs or for your outbound gateways; either end will suffice to allow you to use the DNS MX algorithm. --Sandy ------------------------------------ Sanford Whiteman, Chief Technologist Broadleaf Systems, a division of Cypress Integrated Systems, Inc. e-mail: [EMAIL PROTECTED] SpamAssassin plugs into Declude! http://www.imprimia.com/products/software/freeutils/SPAMC32/download/release/ Defuse Dictionary Attacks: Turn Exchange or IMail mailboxes into IMail Aliases! http://www.imprimia.com/products/software/freeutils/exchange2aliases/download/release/ http://www.imprimia.com/products/software/freeutils/ldap2aliases/download/release/ --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
