You have cpinternet.com (formerly isd.net) as your ISP. I use to have isd.net then cpinternet.com as my provider. I now use visi.com (think global act local) nonviolentpeaceforce.org is your domain name used for email and web site. nvpf.org is another domain named used for nonviolentpeaceforce.org. who did the domain name registration on the 2 names? when I did a "whois" on both names they come up with different information (IP etc...) when I ping the domain names I get different IP addresses (big clue) when I tracert the domain names I get different information. (this is key) when I http://www.nvpf.org I get to http://www.nonviolentpeaceforce.org (the reverse is true) some where the DNS "may" have an issue determining where or what IP addresses the names are to use. it looks like 209.240.253.93 and 216.15.192.47 are pointing to the same place. email does not like that it likes an exact place to go especially when receiving servers are verifying the sending server as a static address. When the IP addresses don't match the email bounces. *************************** C:\>ping www.nvpf.org Pinging www.nvpf.org [209.240.253.93] with 32 bytes of data: Request timed out. Ping statistics for 209.240.253.93: Packets: Sent = 1, Received = 0, Lost = 1 (100% loss), ----------------------------------- C:\>ping www.nonviolentpeaceforce.org Pinging www.nonviolentpeaceforce.org [216.15.192.47] with 32 bytes of data: Reply from 216.15.192.47: bytes=32 time=49ms TTL=120 Reply from 216.15.192.47: bytes=32 time=61ms TTL=120 Reply from 216.15.192.47: bytes=32 time=48ms TTL=120 Reply from 216.15.192.47: bytes=32 time=48ms TTL=120 Ping statistics for 216.15.192.47: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 48ms, Maximum = 61ms, Average = 51ms *************************** Trace Routes C:\Documents and Settings>tracert www.nvpf.org Tracing route to www.nvpf.org [209.240.253.93] over a maximum of 30 hops: 1 3 ms 3 ms 3 ms smac-gw.dsl.visi.com [208.42.100.190] 2 38 ms 55 ms 49 ms c6400-1-nrp-3.border.mpls.visi.com [209.98.0.19] 3 86 ms 34 ms 34 ms ge6-0-0.core-1.mpls.visi.com [209.98.3.222] 4 34 ms 34 ms 34 ms ge6-0.core-3.mpls.visi.com [209.98.3.197] 5 43 ms 34 ms 35 ms POS5-0.GW5.MSP1.ALTER.NET [157.130.98.1] 6 43 ms 34 ms 36 ms 0.so-0-3-0.XL2.MSP1.ALTER.NET [152.63.67.142] 7 51 ms 44 ms 44 ms 0.so-6-0-0.XL2.CHI2.ALTER.NET [152.63.70.26] 8 43 ms 43 ms 43 ms 0.so-6-0-0.BR6.CHI2.ALTER.NET [152.63.71.98] 9 52 ms 45 ms 45 ms 204.255.169.10 10 46 ms 44 ms 98 ms p5-0-0.RAR2.Chicago-IL.us.xo.net [65.106.6.137] 11 682 ms 45 ms 45 ms p4-0-0.MAR2.Chicago-IL.us.xo.net [65.106.6.146] 12 70 ms 68 ms 66 ms p4-0-0-0.MAR2.Minneapolis-MN.us.xo.net [207.88.84.62] 13 55 ms 54 ms 54 ms p15-0.CHR1.Minneapolis-MN.us.xo.net [207.88.84.46] 14 54 ms 54 ms 54 ms 67.109.64.66.ptr.us.xo.net [67.109.64.66] 15 62 ms 54 ms 54 ms mpls-dsl.cpinternet.com [209.240.254.46] 16 * * * Request timed out. 17 * * * Request timed out. ----------------------------------- C:\Documents and Settings>tracert www.nonviolentpeaceforce.org Tracing route to www.nonviolentpeaceforce.org [216.15.192.47] over a maximum of 30 hops: 1 5 ms 3 ms 3 ms smac-gw.dsl.visi.com [208.42.100.190] 2 50 ms 34 ms 34 ms c6400-1-nrp-3.border.mpls.visi.com [209.98.0.19] 3 35 ms 35 ms 35 ms ge6-0-0.core-1.mpls.visi.com [209.98.3.222] 4 42 ms 34 ms 34 ms ge6-0.core-3.mpls.visi.com [209.98.3.197] 5 49 ms 35 ms 35 ms POS5-0.GW5.MSP1.ALTER.NET [157.130.98.1] 6 50 ms 35 ms 35 ms 0.so-0-3-0.XL1.MSP1.ALTER.NET [152.63.67.138] 7 479 ms 49 ms 63 ms 0.so-3-0-0.XL1.STL3.ALTER.NET [152.63.88.242] 8 57 ms 49 ms 49 ms 185.ATM7-0.GW2.STL3.ALTER.NET [152.63.90.117] 9 57 ms 49 ms 49 ms cybercon-gw.customer.alter.net [157.130.163.138] 10 56 ms 49 ms 50 ms www.minneapolis-stpaul.net [216.15.192.47] Trace complete. Sam. greg whitley mott wrote: >> Sam MacDonald wrote: >> >>> I think you have to switch to a business class service with Comcast >>> to get a static IP address that is really static. >>> What they might do if it isn't business class is a MAC reservation >>> within the DHCP scope for an address, this would cause your mail to >>> get bounced as a dynamic address. The address would still be in the >>> scope that is dynamic. >>> They use the MAC address on your router and tell the scope the >>> address associated with this MAC can't be given to any other MAC >>> address. >>> >>> Many businesses use reservations within a DHCP scope to keep from >>> having static addresses on all their servers, it's easier to manage. >> > > hmm, interesting. > > nvpf.org has a static ip with cpinternet.com. postfix delivers > delightedly to almost everywhere. i registered onto the AwOL bulk > mail whitelist, they accepted small amounts of mail anyway but larger > amounts needed registration with their whitelist. > > for verizon, i have the following transport map entries: > verizon.net smtp:mail.cpinternet.com > .verizon.net smtp:mail.cpinternet.com > > i didn't need to do anything special for verizon until just a couple > weeks ago. when i noticed verizon stuff bouncing, that's how i fixed > it. i considered complaining to verizon, but took the path of least > resistence instead. i presumed at the time that perhaps verizon has > started enforcing SPF or something, but haven't looked into it. > > but sam, might verizon be bouncing me because cpinternet is doing as > you say? or, since our mail goes directly to everywhere else, does it > not really apply to us? > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list >