On Friday, September 21, 2007, 10:45:14, Darin Cox wrote: > I would go with > > "v=spf1 mx ip4:216.81.209.193/27 -all" > > That says your mx record is a valid originator, and your ip range is > as well (for web-based forms or other smtp servers).
If that address range covers all the IP addresses that all of your MX records resolve to then its redundant. Also, if they build the list of valid IP's instead of first checking any explicit ones you'll be making them lookup and resolve the MX record(s) unnecessarily. -- [EMAIL PROTECTED] "The avalanche has already started, it is too Rod Dorman late for the pebbles to vote." - Ambassador Kosh 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/
