How can I monitor Microsoft reputation on a shared IP and what are third-party DKIM signatures?
Summary
What email marketers say9Marketer opinions
Email marketer from Reddit suggests regularly checking blocklist status using multi-RBL lookup tools to monitor the shared IP's reputation. He also suggests setting up alerts for any listing.
Email marketer from Email Deliverability Forum explains that ESPs often use their own DKIM domains when sending on behalf of clients. This can help the ESP manage feedback loops and authentication more effectively but can also lead to deliverability issues if not properly configured.
Email marketer from GlockApps recommends using seed list testing to monitor inbox placement at Microsoft and other ISPs. He also suggests looking at engagement metrics.
Email marketer from Mailgun suggests closely monitoring your sending reputation through their platform's analytics. He also stresses the importance of maintaining a clean sending list, avoiding spam traps, and adhering to best practices for authentication.
Email marketer from Mailjet suggests using tools like Sender Score and reputation monitoring services to track your shared IP's reputation. They also advise maintaining good sending practices to avoid blacklisting.
Email marketer from SparkPost suggests monitoring IP reputation using tools that provide insights into blocklist status and sender scores. He also mentions setting up alerts to get notified of any significant reputation changes.
Email marketer from Snov.io recommends checking your sender reputation using tools like Talos Intelligence. They emphasize monitoring your sending volume and list hygiene to maintain a positive reputation.
Email marketer from StackOverflow explains that a third-party DKIM signature occurs when an email service provider (ESP) signs emails on behalf of their clients using the ESP's domain, especially if the client hasn't set up their own DKIM.
Email marketer from Litmus advises focusing on domain reputation over IP reputation and checking domain health using Google Postmaster Tools to get insights into spam rates, feedback loop, and authentication status.
What the experts say6Expert opinions
Expert from Spamresource recommends closely monitoring blocklist listings as an indicator of IP reputation for shared IPs. Regularly check major blocklists and use monitoring tools to stay informed about potential issues affecting deliverability.
Expert from Word to the Wise explains that third-party DKIM signatures are often used by ESPs when sending mail on behalf of their clients, particularly if the client hasn't set up their own DKIM. She advises senders to be aware of the potential implications for brand reputation and authentication.
Expert from Email Geeks gives examples of third-party DKIM signatures and emphasizes that if you're '[yourdomain.com]', you always want a DKIM signature signing as '[yourdomain.com]'.
Expert from Email Geeks clarifies that by inbox placement testing, he means seed list testing and mentions that he works for Kickbox, which has its own seed list-based inbox placement seedlist.
Expert from Email Geeks shares his trick to rely on GPT as much as possible and assume/hope measurements are similar on MSFT, along with inbox monitoring. He also advises keeping third-party DKIM signatures away from mail to Microsoft (and Google) domains and mentions that he doesn't see SNDS being upgraded to deal with domains.
Expert from Email Geeks defines a third-party DKIM signature as a DKIM signature with a domain other than your own.
What the documentation says4Technical articles
Documentation from Google Workspace Admin Help explains that DKIM (DomainKeys Identified Mail) is an email authentication method designed to detect email spoofing. It allows an organization to take responsibility for a message in transit.
Documentation from RFC Editor details how DKIM signatures work, including the use of cryptographic keys to verify the sender's identity. A third-party DKIM signature would involve a domain other than the sender's, often from an ESP.
Documentation from Google Postmaster Tools explains that this free tool provides senders with data about their email performance, including spam rates, IP reputation, and feedback loop information, which can help identify and fix deliverability issues.
Documentation from Microsoft SNDS Documentation explains that SNDS (Smart Network Data Services) provides data about your sending IPs, including complaint rates and spam trap hits, but does not directly offer domain reputation insights or specifically address shared IP monitoring.