Addressing Proofpoint IP blocks and understanding their dynamic behavior involves a multi-faceted approach. Direct contact via postmaster@proofpoint.com is recommended for troubleshooting, emphasizing the need for detailed information like bounce messages and IP addresses. It's crucial to understand that IP reputation is dynamic, fluctuating based on sending volume, content, and user engagement, making a 'not blocked' status temporary. Maintaining good list hygiene, adhering to compliant sending practices (SPF, DKIM, DMARC), monitoring feedback loops, gradually increasing sending volume, and actively monitoring sender score and reputation are all vital components. Avoiding sudden spikes in sending volume and consistently adhering to email sending best practices will minimize the risk of IP blocks. Furthermore, understanding Proofpoint's detection methods and proactively adjusting sending practices accordingly is essential for maintaining good deliverability.
6 marketer opinions
To address Proofpoint IP blocks and dynamic block behavior, experts recommend checking bounce messages, implementing robust authentication (SPF, DKIM, DMARC), and monitoring sender reputation. Sudden volume spikes and changes in sending patterns can trigger dynamic blocks, suggesting a gradual ramp-up and close monitoring. Engaging with Proofpoint's postmaster with detailed logs is crucial for issue clarification and demonstrating commitment to best practices. Recognizing that blocks can be temporary due to spam complaints or content changes, consistent adherence to best practices is vital. Maintaining a positive sender reputation through consistent volume, positive engagement, and low complaint rates is key to avoiding blocks.
Marketer view
Email marketer from StackOverflow user suggests reviewing bounce messages for specific reasons cited by Proofpoint. They recommend ensuring proper SPF, DKIM, and DMARC records are in place and correctly configured, as well as monitoring sending reputation.
27 Jul 2024 - StackOverflow
Marketer view
Email marketer from Mailhardener answers that understanding dynamic IP block behavior can be very confusing, blocks are often temporary and can be triggered by short periods of spam complaints or changes in content. Consistent monitoring and adherence to best practices are key to preventing future blocks.
8 Aug 2024 - Mailhardener
4 expert opinions
To address Proofpoint IP blocks and dynamic block behavior, contacting postmaster@proofpoint.com is recommended for troubleshooting. Experts highlight the dynamic nature of IP blocks, where a current 'not blocked' status doesn't guarantee past or future status. Emphasis is placed on understanding Proofpoint's detection methods and maintaining good list hygiene, compliant sending practices, and monitoring feedback loops to proactively avoid blocks and maintain deliverability.
Expert view
Expert from Spamresource explains that, while not directly addressing contact methods, they stress the importance of understanding Proofpoint's detection methods and adjusting sending practices accordingly to maintain good deliverability. They imply that understanding their filters helps prevent blocks.
23 Mar 2023 - Spamresource
Expert view
Expert from Email Geeks explains that blocks are dynamic, meaning if it's not blocked now, it doesn't mean it wasn't blocked previously. They also note that most blocks these days are dynamic, even many Spamhaus/SBL listings.
7 May 2022 - Email Geeks
3 technical articles
Proofpoint's documentation highlights that IP reputation is dynamically assessed based on sending volume, content, and user engagement, causing reputation to fluctuate. The 'not blocked' status is not a guarantee of future acceptance. Proofpoint provides postmaster@proofpoint.com for deliverability issues, recommending detailed information like bounce messages and IP addresses. Senders can also use ipcheck.proofpoint.com to check their current IP reputation, though historical block data isn't available.
Technical article
Documentation from Proofpoint answers that Proofpoint offers a postmaster email address (postmaster@proofpoint.com) for senders experiencing deliverability issues. They recommend providing detailed information about the issue, including bounce messages and IP addresses, for faster resolution.
23 Feb 2025 - Proofpoint
Technical article
Documentation from Proofpoint Support explains that Proofpoint's IP reputation system dynamically assesses IP addresses based on various factors including sending volume, content, and user engagement. Reputation can fluctuate, and a 'not blocked' status does not guarantee future acceptance.
11 Dec 2024 - Proofpoint Support
Are there any tools available to report on Verizon's new data feeds?
How can I contact ProofPoint support to resolve email delivery issues?
How can I resolve email deliverability issues with Proofpoint when emails are not bouncing or going to spam?
How do G Suite and Proofpoint compare for email gateway security?
How do I contact Proofpoint about IP address listing issues and what information should I provide?
How do Mimecast and Proofpoint scrutinize senders, and what best practices can improve inbox placement beyond whitelisting?