487 postsPage 8 of 49
A go-to resource on best practices for email security, anti-spam trends, product updates and everything in between.
Industry
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What bounce codes reveal about your email delivery—and how to interpret them. When your email fails to deliver, the server doesn’t just reject it—it tells you why. That reason is …
Read post: Understanding SMTP Response CodesIndustry
3 min read
Introduction Spam filtering is a critical defense against outbound abuse, phishing, and account compromise. But under the General Data Protection Regulation (GDPR), any operation involving personal data must have a …
Read post: Is Consent Required for Spam Filtering? A GDPR Perspective for Hosts and ESPsIndustry
3 min read
Introduction Filtering outbound email is essential for stopping spam, phishing, and abuse. But if your filtering practices inspect message content or metadata, are you violating your users’ privacy? In a …
Read post: How to Filter Emails Without Violating Privacy: A GDPR-Safe Approach for Hosts and ESPs
Industry
3 min read
In shared hosting environments, one bad sender can ruin it for everyone. A single compromised account sending spam can lead to blacklisted IPs, delivery failures, and angry customers wondering why …
Read post: Using SMTP Relay to Isolate and Protect Sending IPs
Industry
3 min read
Introduction With the rise in outbound spam filtering and automated abuse detection, email service providers (ESPs) and web hosts face a critical question: How does GDPR apply to email processing—especially …
Read post: Understanding GDPR and Email Processing: What Web Hosts and ESPs Need to Know
Industry
3 min read
Signup abuse doesn’t just affect a single hosting account—it can poison your entire IP range. When malicious users create accounts to send spam, phish, or host malware, the consequences ripple …
Read post: How Signup Abuse Impacts IP Reputation
Industry
3 min read
Email abuse is no longer a problem you can afford to handle manually. In hosting environments—especially shared or reseller hosting—abuse can escalate in seconds, damaging your IP reputation and impacting …
Read post: Automating Abuse Responses with AbuseAPI or Custom Scripts
Industry
3 min read
Modern spam and email abuse tactics are increasingly difficult to detect using static rules alone. Attackers now use clean IPs, mimic normal user activity, and automate around basic filters. To …
Read post: Using Behavior Analytics to Detect Abuse PatternsIndustry
3 min read
Reseller hosting environments are uniquely vulnerable to signup abuse. With multiple layers of account ownership and limited oversight across customers, attackers often exploit this complexity to register fake accounts, send …
Read post: Signup Abuse in Reseller Hosting: Risks and Remedies
Industry
3 min read
Newly created accounts pose one of the highest risks for outbound spam in hosting environments. Even with strong signup defenses in place, some fake or malicious users will make it …
Read post: Preventing Spam from New AccountsSubscribe to the MailChannels Blog to receive new blog posts in your inbox.