Grant, Use the following table to read out the CIDR ranges.
There are lots of freeware tools on the web to calculate the proper ranges, e.g. http://www.radmin.com/radmin/utility/calc.php Marius Number of Number of Classful Addresses Bits Prefix Notation Mask 1 0 /32 255.255.255.255 2 1 /31 255.255.255.254 4 2 /30 255.255.255.252 8 3 /29 255.255.255.248 16 4 /28 255.255.255.240 32 5 /27 255.255.255.224 64 6 /26 255.255.255.192 128 7 /25 255.255.255.128 256 8 /24 1 C 255.255.255 512 9 /23 2 C 255.255.254 1 K 10 /22 4 C 255.255.252 2 K 11 /21 8 C 255.255.248 4 K 12 /20 16 C 255.255.240 8 K 13 /19 32 C 255.255.224 16 K 14 /18 64 C 255.255.192 32 K 15 /17 128 C 255.255.128 64 K 16 /16 1 B 255.255 128 K 17 /15 2 B 255.254 256 K 18 /14 4 B 255.252 512 K 19 /13 8 B 255.248 1 M 20 /12 16 B 255.240 2 M 21 /11 32 B 255.224 4 M 22 /10 64 B 255.192 8 M 23 /9 128 B 255.128 16 M 24 /8 1 A 255 32 M 25 /7 2 A 254 64 M 26 /6 4 A 252 128 M 27 /5 8 A 248 -------------------------- -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Grant Griffith - IMail Sent: Tuesday, June 29, 2004 3:21 PM To: [EMAIL PROTECTED] Subject: RE: [IMail Forum] Imail SPF support Opps, the line should of said: v=spf1 a mx ip4:12.177.8.48/62 -all Sincerely, Grant Griffith 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/
