Curated News
By: NewsRamp Editorial Staff
November 13, 2026
56% of Emails Blocked: SafetyMails Launches MailTester to Boost Deliverability
TLDR
- SafetyMails MailTester gives senders an edge by scoring spam risk and authentication before campaigns, helping avoid Gmail rejections.
- MailTester analyzes test emails for SPF, DKIM, DMARC, BIMI, SpamAssassin, links, and security, then returns a spam risk score within minutes.
- SafetyMails helps marketers protect inboxes by reducing unwanted email and ensuring messages reach people who value them.
- Over half of one billion emails were blocked in January 2026, with poor sender reputation causing 33.9% of rejections.
Impact - Why it Matters
With more than half of all emails failing to reach inboxes, businesses can no longer afford to treat email deliverability as an afterthought. Poor sender reputation and technical misconfigurations don’t just waste marketing budgets—they can permanently damage relationships with subscribers and erode trust in the channel. As Gmail and other providers tighten enforcement, the margin for error is shrinking. Tools like SafetyMails’ MailTester give marketers a way to diagnose problems before hitting send, but the broader lesson is clear: email success now depends on rigorous list hygiene, authentication, and reputation management. Companies that adapt will protect their ROI and maintain a reliable connection with their audience; those that don’t risk being filtered out entirely.
Summary
A new study analyzing one billion emails processed in January 2026 reveals that 56.1% were blocked by spam and virus filters, with only 43.9% delivered. The findings, published in a 2026 email traffic study, highlight poor sender reputation as a factor in 33.9% of rejected emails, followed by invalid recipient addresses and authentication issues. For businesses relying on email marketing, these results underscore the need for healthy email lists, properly configured sending infrastructure, and a trustworthy sender reputation.
Gmail’s strict sender requirements are a key driver of these trends. The platform recommends keeping spam complaint rates below 0.1% and warns that rates above 0.3% can lead to delivery issues and ineligibility for mitigation. Since November 2025, Gmail has ramped up enforcement, including temporary and permanent rejections. Priscila Gonçalves, CEO of SafetyMails, notes that “having a good offer or relevant content is not enough” if sender reputation is compromised. To address these challenges, Email verification helps identify problematic recipients, and SafetyMails’ Email List Quality research provides sector-specific insights. However, valid addresses alone cannot guarantee inbox placement—authentication, content, and technical configuration also matter.
In October 2026, SafetyMails launched MailTester, a tool that analyzes messages before sending. Users generate a test email address, send their message, and receive a detailed report with a spam risk score, SPF/DKIM/DMARC/BIMI checks, SpamAssassin analysis, link evaluation, and previews. Available via the platform’s credit system (100 credits per test), MailTester helps marketers identify issues early, though it does not replace sender reputation monitoring. SafetyMails, a Brazilian email verification company, offers bulk verification, real-time APIs, and deliverability testing to support these efforts.
Source Statement
This curated news summary relied on content distributed by 24-7 Press Release. Read the original source here, 56% of Emails Blocked: SafetyMails Launches MailTester to Boost Deliverability
