My ISP is blocking your emails, what can I do?

Please copy and paste this text and send it to your internet service provider:

Important Note: When you copy and paste these letters into an email, please be sure to replace the XXX placeholder with more specific and appropriate information before sending it to either the contact or ISP.

Draft Message to Your ISP 

To: ISP Customer Support
Subject: Remove Constant Contact Block

Hello. My name is XXXX and I have been a customer of your services since XXXX. I understand that you employ filters and/or blacklists to protect customers like myself from unsolicited email; however, this has made it impossible for me to receive newsletters, announcements, and promotions that I have requested. I value these communications and would like to receive them using this email address.

The sender of these emails uses an email marketing service called Constant Contact. Constant Contact is not an open relay and has strict anti-spam policies in place. Because your filters block emails from Constant Contact I am unable to receive these communications.

I ask that you please help me determine why these emails are being blocked. For further information about Constant Contact or to request more information from them such as log files, the Ops team can be reached at - 781.472.8103 or ops@constantcontact.com.

Mail from Constant Contact can be found with the following characteristics:
"Envelope from:" domains:

@in.constantcontact.com
@in.confirmedcc.com

Sending IPs

Constant Contact has recently migrated most outbound mail to a new consolidated IP block. Legacy IPs will be removed from the list below once they are defunct. All future mail from Constant Contact will be sent from:

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:

208.75.123.130     ccm22.constantcontact.com
208.75.123.131     ccm23.constantcontact.com
208.75.123.132     ccm24.constantcontact.com
208.75.123.133     ccm25.constantcontact.com
208.75.123.161     ccm26.constantcontact.com
208.75.123.162     ccm27.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
208.75.123.193     ccm33.constantcontact.com
208.75.123.194     ccm34.constantcontact.com
208.75.123.195     ccm35.constantcontact.com
208.75.123.196     ccm36.constantcontact.com
208.75.123.250     ccm37.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

Legacy IP addresses still sending these emails:

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


Please contact me when this problem has been resolved.

Sincerely,

XXXXXX