Which ISPs use DKIM domains for Feedback Loops (FBLs)?
Summary
What email marketers say10Marketer opinions
Email marketer from Litmus shares a guide on setting up and monitoring feedback loops, emphasizing the importance of authenticating emails with DKIM. Several ISPs like Gmail and Yahoo offer FBLs based on DKIM, providing data on spam complaints to improve sender reputation.
Email marketer from Stack Overflow shares that setting up a DKIM-based Feedback Loop with major ISPs like Gmail, Yahoo, and AOL is crucial for monitoring spam complaints. By analyzing the FBL data, senders can quickly identify and address potential issues with their email campaigns, improving overall deliverability.
Email marketer from Validity shares information on how to setup a Domain-based Feedback Loop (DFBL), which allows senders to receive complaint data based on DKIM signatures and provides data on email marked as spam. They manage FBL signups on behalf of companies.
Email marketer from GlockApps provides a guide on feedback loops (FBLs), explaining how to set them up to monitor spam complaints. Several ISPs support domain-based FBLs using DKIM, offering valuable data to improve sender reputation.
Email marketer from SenderScore shares a guide to improving your sender reputation, emphasizing the importance of DKIM and FBLs. Setting up domain-based FBLs with major ISPs helps monitor spam complaints and maintain a high sender score.
Email marketer from Mailjet states that some ISPs, notably Gmail, Yahoo, and AOL, provide feedback loops based on DKIM. These loops send reports to senders when recipients mark their emails as spam, enabling senders to quickly identify and address deliverability issues.
Email marketer from EmailGeeks Forum suggests that Validity's Universal Feedback Loop is a good starting point. It consolidates data from multiple ISPs that support domain-based FBLs, giving you a comprehensive view of your sender reputation.
Marketer from Email Geeks shares that you can check your FBL in Validity’s universal FBL account and could see both the IPs and the domain supporting providers.
Email marketer from Reddit explains that AOL provides a DKIM-based FBL where you can track the email addresses that reported spam. It’s crucial for senders to monitor this data to maintain a good sender reputation.
Email marketer from SparkPost responds that some ISPs such as AOL and Yahoo, offer domain-based feedback loops (FBLs) using DKIM. These allow senders to receive reports about spam complaints related to their domains, helping them maintain a clean sending reputation.
What the experts say5Expert opinions
Expert from Spam Resource explains that feedback loop reporting provides valuable insights into your sending reputation, identifies if your messages are being marked as spam and what domains and ISPs are marking your mail negatively.
Expert from Spam Resource explains the importance of whitelisting to ensure recipients receive your emails, particularly in corporate environments, and highlights the different levels of whitelisting, including domain whitelisting, DKIM whitelisting, and IP address whitelisting, while noting that some ISPs may require additional information to facilitate whitelisting.
Expert from Email Geeks states that icloud doesn’t offer a FBL.
Expert from Email Geeks suggests for anyone who has FBL questions is to make use of the Validity FBL knowledgebase as they manage a lot of the FBL signups on behalf of different companies.
Expert from Word to the Wise highlights Microsoft's Smart Network Data Services (SNDS) as a valuable tool for email senders, offering data on spam complaints, spam trap hits, and authentication status, and recommends registering to monitor IP reputation and identify potential delivery issues.
What the documentation says6Technical articles
Documentation from RFC explains the technical specifications for DKIM and related authentication methods. DKIM is fundamental for establishing feedback loops, as it allows ISPs to reliably identify the sender of an email, facilitating the delivery of FBL reports.
Documentation from Yahoo shares information on using DomainKeys Identified Mail (DKIM) to authenticate your messages, as this is the basis for them to supply reports on spam complaints. It allows senders to track the email IDs who reported to spam.
Documentation from ReturnPath (now part of Validity) used to explain how DKIM-based feedback loops allow senders to receive complaint data directly from ISPs. The setup involves authenticating your emails with DKIM and registering for FBL programs with supporting ISPs.
Documentation from Microsoft explains that while they primarily use IP-based FBL, understanding their Sender Network Data Services (SNDS) can help monitor your IP reputation, which indirectly relates to how domains perform and how feedback loops can be managed. They provide data on complaint rates.
Documentation from Port25 outlines the importance of DomainKeys Identified Mail (DKIM) for modern email authentication. DKIM is required for most major ISPs to provide Feedback Loops, allowing the sender to understand if their users are marking the email as spam.
Documentation from Google explains that Gmail provides a feedback loop for senders who authenticate their mail with DKIM. If a recipient marks a message as spam, the sender receives an aggregate report identifying the specific messages and the reason for the spam complaint, enabling senders to identify and address spam issues.