Preventing domain blacklisting due to infected computers or scraping contact information requires a comprehensive strategy incorporating technical controls, security protocols, employee training, and list management practices. Securing user accounts with strong passwords and two-factor authentication, monitoring outbound email for anomalies, implementing email authentication protocols (SPF, DKIM, DMARC), and segmenting the network are crucial technical measures. Alongside, regularly cleaning email lists, using CAPTCHA on signup forms, employing double opt-in, and establishing a clear unsubscribe process help mitigate the risks associated with scraped data. Educating employees about phishing and malware, conducting regular malware scans, and actively monitoring domain reputation enable proactive identification and remediation of potential issues. Additionally, stripping client IPs from email headers and leveraging a dedicated IP for email sending can further minimize the impact of isolated incidents.
12 marketer opinions
Preventing domain blacklisting due to infected computers or scraped contact information involves a multi-faceted approach encompassing technical configurations, security practices, and list management. Key strategies include: securing user accounts, monitoring outbound email, implementing DMARC/SPF/DKIM, regularly cleaning email lists, educating employees about phishing and malware, using CAPTCHA on signup forms, and actively monitoring domain reputation. Stripping client IPs from email headers and network segmentation can also mitigate risks. Employing double opt-in and considering a dedicated IP further enhance deliverability and isolate potential issues.
Marketer view
Email marketer from Email Marketing Forum shares that educating employees about phishing scams and safe computing practices can minimize the risk of malware infections that lead to outbound spam.
5 Jun 2022 - Email Marketing Forum
Marketer view
Marketer from Email Geeks says if you have multiple relay instances outside of your org, the reputation of each relay server can be taken into account and suggests setting your MTA to strip out those internal headers (try hide-message-source, and remove-header in PMTA).
25 May 2024 - Email Geeks
12 expert opinions
Preventing domain blacklisting from infected computers and scraped contact information requires a combination of proactive security measures and responsive actions. Identifying and isolating infected machines by analyzing mail logs and correlating IPs with authenticated users is critical. Additionally, strong security policies like password management and staff training are essential. Actively combatting scraping by monitoring employee activity, restricting external tools, and adhering to CAN-SPAM regulations is necessary. Furthermore, using a blocklist monitoring service can aid in early detection of blacklisting issues.
Expert view
Expert from Email Geeks says scraping email addresses and sending unsolicited mail to people who never asked for it and for whom it brings zero value to the recipient is problematic and will get blocked. Such companies prohibit unsolicited email.
23 Jul 2023 - Email Geeks
Expert view
Expert from Email Geeks suggests looking for the IP address in SMTP records to trace where it comes from, and most importantly, determine which authenticated user it is.
1 May 2022 - Email Geeks
5 technical articles
Preventing domain blacklisting from infected computers or scraped contact information requires a blend of security best practices and technical implementation. Securing user accounts with strong passwords and 2-Step Verification is a fundamental step. Monitoring outbound email and limiting sending volumes can help identify compromised accounts. Having a clear unsubscribe process prevents issues from scraping. Implementing SPF records restricts which servers can send email from your domain. Network segmentation confines the potential damage from a virus.
Technical article
Documentation from Spamhaus shares that having a clear and easily accessible unsubscribe process is essential for compliance and preventing blacklisting due to scraping and unsolicited email complaints. Make sure to honor all unsubscribe requests immediately.
16 Sep 2022 - Spamhaus
Technical article
Documentation from Cisco says network segmentation can limit the damage a virus can do. By separating parts of the network, they can only send spam through the segmented network, so it is easier to detect and limit damage.
4 Oct 2021 - Cisco
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