How to resolve domain blocklisting and improve email reputation?
Summary
What email marketers say12Marketer opinions
Email marketer from SendPulse shares that to clean email lists, remove invalid email addresses, unsubscribe inactive subscribers, and segment subscribers based on their engagement. Regularly cleaning your list improves your sender reputation and deliverability.
Email marketer from Validity (formerly Return Path) advises monitoring feedback loops (FBLs) to track complaints from recipients. Addressing complaints promptly helps improve your sender reputation and maintain good deliverability.
Marketer from Email Geeks suggests it's probably safe to ignore SORBS blocklisting as it's not widely referenced and can lead to false positives. Recommends creating an account on their website to find out why they listed you and request delisting if desired.
Marketer from Email Geeks explains policy and practices are the way to go for fixing reputation. The “tools” to help with deliverability are mostly snake oil and a distraction from the real work. The first step is find the root cause of what is causing your deliverability issues.
Email marketer from GlockApps shares to monitor email deliverability by using tools that simulate sending to multiple inboxes to identify placement issues. Also use feedback loops to track complaints.
Email marketer from WebHostingTalk forum suggests to gradually increase sending volume over time to establish a positive sending history with ISPs and avoid triggering spam filters. Ramp up the volume slowly, and consistently monitor deliverability.
Email marketer from Litmus details proactive email reputation management including consistently authenticating emails, monitoring sender reputation, segmenting lists, cleaning inactive subscribers, and analyzing engagement metrics to catch problems early.
Email marketer from HubSpot explains that permission-based marketing is key. Only send emails to contacts who have explicitly opted in to receive them, and ensure you always include an easy way for recipients to unsubscribe. This helps build trust and maintain a positive sender reputation.
Marketer from Email Geeks says SORBS has a very low impact.
Marketer from Email Geeks explains SORBS issues arise from sending to unengaged data. Sign up for a SORBS account to review hit dates and list segmentation. Tighten segmentation, then request delisting only after changes to avoid relisting.
Email marketer from Mailjet explains that to avoid blocklists, ensure explicit consent from subscribers, maintain consistent sending volume, authenticate email with SPF, DKIM, and DMARC, and monitor bounce rates and feedback loops to quickly address issues.
Email marketer from Reddit user r/emailmarketing suggests to immediately investigate the cause, check recent sending practices, review bounce rates, and contact your ESP's support team to understand if there were any changes on their end. Also, check blocklist status via MultiRBL.
What the experts say6Expert opinions
Expert from Word to the Wise suggests to prevent future abuse, monitor your systems for unusual activity. Block any suspicious signups and be aware of any compromised accounts. Use strong password requirements and consider using multi-factor authentication and implement feedback loops to monitor user complaints and address issues promptly.
Expert from Spam Resource explains that when dealing with blocklists, you should first identify why you are listed and then fix the root cause. After the issue is resolved, contact the blocklist and ask for removal, showing them the actions you have taken to prevent future issues.
Expert from Spam Resource emphasizes the importance of list hygiene, advising regular removal of inactive or unengaged subscribers. Maintaining a clean list reduces bounce rates and improves sender reputation, preventing blocklisting.
Expert from Word to the Wise explains that avoiding 'snowshoe spamming' (spreading email volume across many IPs to avoid detection) involves carefully managing IP reputation. Monitor each IP's performance, limit sending volume per IP, and ensure all IPs follow email best practices.
Expert from Email Geeks says that the “tool” for Google is to send mail that causes your recipients to interact with the mail in ways that tell the machine learning filters this is good and wanted email.
Expert from Email Geeks recommends worrying more about Google's perception of your reputation than SORBS.
What the documentation says6Technical articles
Documentation from DKIM.org explains DKIM, an email authentication method that uses cryptographic signatures to verify the sender of an email. Implementing DKIM helps prevent email spoofing and improves deliverability by building trust with ISPs.
Documentation from Spamhaus explains to use their Blocklist Removal Center to check if your IP or domain is listed. If listed, understand the reason and follow their specific instructions for requesting removal after addressing the issue.
Documentation from Google explains that Postmaster Tools provides insights into your sending reputation, spam rate, and other metrics. Use this data to identify and resolve issues affecting deliverability to Gmail users.
Documentation from RFC Editor explains SPF, a standard email authentication method, allows domain owners to specify which mail servers are authorized to send emails on behalf of their domain. Implementing SPF helps prevent spammers from forging email addresses, improving deliverability.
Documentation from DMARC.org explains DMARC, an email authentication protocol that builds upon SPF and DKIM to give domain owners more control over how their email is handled. Implementing DMARC allows you to specify what action receiving mail servers should take if an email fails SPF or DKIM checks.
Documentation from Microsoft outlines that to improve email delivery, ensure your sending IPs are not blacklisted, authenticate your email with SPF, DKIM, and DMARC, and follow best practices for email content to avoid being marked as spam.