Constant Contact IP Ranges 208.75.123.0 - 208.75.123.255
In an earlier post, I mused about finding the list of IP addresses that bulk emailer Constant Contact uses to send out their email messages. So today, I went looking.
Among the first results is an article with the title 'The Battle of the Inbox' on the Constant Contact site that talks about how to get around those pesky people and companies who don't want their inbox attacked every time a Constant Contact customer has the urge to send out some earth-shatteringly important missive about a new way for them to get at your money.
No IP ranges listed there, though. So I kept looking and lo and behold, the St. Lawrence Seaway is one of several places to find the answer. Ironically, it's part of a post on the Seaway site about how to get those pesky systems administrators who do their best to keep your inbox safe to let let down the barriers so that Constant Contact's digital warriors can get through and, I presume, win the battle.
The list is often part of a form letter - there are various examples online - created by Constant Contact to send to system administrators who are blocking Constant Contact emails from entering their networks.
At any rate, here are the ranges:
IP Range: 208.75.123.0 - 208.75.123.255 CIDR: 208.75.123.0/24 Network/Netmask: 208.75.123.0 255.255.255.0
Specific IPs sending from this range:
208.75.123.1 coi001.confirmedcc.com 208.75.123.2 coi002.confirmedcc.com 208.75.123.3 coi003.confirmedcc.com 208.75.123.103 coi103.confirmedcc.com
208.75.123.130 ccm22.constantcontact.com 208.75.123.131 ccm23.constantcontact.com 208.75.123.132 ccm24.constantcontact.com 208.75.123.133 ccm25.constantcontact.com 208.75.123.134 ccm134.constantcontact.com 208.75.123.135 ccm135.constantcontact.com 208.75.123.161 ccm26.constantcontact.com 208.75.123.162 ccm27.constantcontact.com 208.75.123.163 ccm38.constantcontact.com 208.75.123.164 ccm39.constantcontact.com 208.75.123.165 ccm165.constantcontact.com 208.75.123.166 ccm166.constantcontact.com 208.75.123.167 ccm167.constantcontact.com 208.75.123.168 ccm168.constantcontact.com 208.75.123.169 ccm169.constantcontact.com 208.75.123.170 ccm170.constantcontact.com 208.75.123.171 ccm171.constantcontact.com 208.75.123.172 ccm172.constantcontact.com 208.75.123.173 ccm173.constantcontact.com 208.75.123.174 ccm174.constantcontact.com 208.75.123.175 ccm175.constantcontact.com 208.75.123.176 ccm176.constantcontact.com 208.75.123.177 ccm177.constantcontact.com 208.75.123.178 ccm178.constantcontact.com 208.75.123.179 ccm178.constantcontact.com 208.75.123.180 ccm178.constantcontact.com 208.75.123.181 ccm178.constantcontact.com 208.75.123.182 ccm178.constantcontact.com 208.75.123.193 ccm33.constantcontact.com 208.75.123.194 ccm34.constantcontact.com 208.75.123.195 ccm35.constantcontact.com 208.75.123.196 ccm36.constantcontact.com 208.75.123.197 ccm197.constantcontact.com 208.75.123.198 ccm198.constantcontact.com 208.75.123.200 ccm200.constantcontact.com 208.75.123.201 ccm201.constantcontact.com 208.75.123.202 ccm202.constantcontact.com 208.75.123.225 ccm29.constantcontact.com 208.75.123.226 ccm30.constantcontact.com 208.75.123.227 ccm31.constantcontact.com 208.75.123.228 ccm32.constantcontact.com 208.75.123.245 mail245.nutshellmail.com 208.75.123.250 ccm37.constantcontact.com
And here's another list of possible legacy email sources: 64.95.77.162 c1.confirmedcc.com 64.95.77.163 c2.confirmedcc.com 64.95.77.164 c3.confirmedcc.com
63.251.135.74 ccm01.constantcontact.com 63.251.135.75 ccm00.constantcontact.com 63.251.135.109 ccm08.constantcontact.com 63.251.135.115 ccm09.constantcontact.com 66.151.234.151 ccm14.constantcontact.com 66.151.234.152 ccm15.constantcontact.com 66.151.234.153 ccm16.constantcontact.com 66.151.234.154 ccm17.constantcontact.com
Your system administrator could use a list like this to reject email from the computers / computer networks at those IP addresses.
I've heard from Constant Contact who offered a briefing with their head of compliance. I'm hoping for mid February.
Some organizations use the company's services for content that recipients requested and actually want. In my experience, the majority of sources of Constant Contact email parachuting into our inboxes didn't fit into that category.
The dilemma facing system administrators is this: if I let one Constant Contact customer to send mail into my network, then I'm opening the door to all current and future Constant Contact customers.
The company admits a lot of customers tend to let marketing enthusiasm overcome their adherence the rules of war, even offering extensive educational materials about email etiquette and legal requirements, should they care to read it.
With most of us moving to mobile, unwanted junk landing in our inboxes is becoming more expensive. Bulk email marketers seem either blissfully unaware or willfully blind to the fact that unwanted junk mail sent to mobile devices is being paid for by the recipient as part of their data plan.
Imagine if the junk flyers dumped into your physical mailbox came with a Postage Due notice from the Post Office. If that's wrong, why should it be okay to shift the cost of digital advertising onto the recipient's mobile phone bill?
-g
