Attention Mailbox & Security Providers: As outlined in the "Sending Mandated Emails to Large Audiences" Best Practice published by M3AAWG, this message is to inform you of a significant volume of email that will be sent by IDX ( https://www.idx.us/about) via iContact (https://www.icontact.com/about) to recipients that have a higher likelihood of bouncing, reporting as spam, or marking as suspicious.
Due to contractual privacy agreements and advice from Counsel, I am unable to prematurely share the specific organization that IDX (via iContact) will be sending these notices on behalf of in this forum. I can share that it is related to the Citrix NetScaler ADC and NetScaler Gateway vulnerability ( https://www.cisa.gov/guidance-addressing-citrix-netscaler-adc-and-gateway-vulnerability-cve-2023-4966-citrix-bleed ). I've included technical details about the notice below. If you are able to assist with any mitigation efforts in allowing these required notices to be accepted by your networks, I would greatly appreciate it. *Sending IPs:* 74.202.227.59 74.202.227.60 74.202.227.61 >From Address: [email protected] Reply-To: [email protected] >From Name: {REDACTED} Subject: Notice of Data Security Incident Return-Path Domain: mail.idx.support DKIM Domain: mail.idx.support FBL DKIM Domain: icontactmail10.com (Gmail & Yahoo recipients only) DMARC: mail.idx.support has a published p=reject record Start Date: Monday, December 18, 2023 End Date: Friday, January 19, 2024 Duration: 33 calendar days Total Volume: 35 million recipients (1-2 million per day) These IPs and domains will not be used for any other sender during this time and no other content than these mandated notices. iContact has done our due diligence to remove/replace as many shared data points from these notices as possible. Our core sending is opt-in email marketing for SMBs and I would greatly appreciate any filtering you could do to prevent these notices from negatively impacting our other mail streams. My contact information is below and please reach out should you have any questions or concerns. Thank you again for your assistance. Justin Frechette Manager, Deliverability & Compliance, iContact Senders Co-Chair, M3AAWG [email protected]
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