What the EU AI Act means for email warm-up and AI cold outreach
The EU AI Act transparency rules under Article 50 take effect on August 2, 2026, and the date…
Warmy Blog
Turn emails into revenue. Master deliverability, inbox placement, and warm-up strategies to scale outreach while protecting your domain reputation
Email Best Practices
How to Create a Free Business Email With or Without a Domain
A business email with a custom domain looks more professional than a personal Gmail or Outlook address, but…
How Your Unsubscribe Link Is Making or Breaking Your Deliverability
New research from Warmy reveals how your unsubscribe link configuration directly impacts inbox placement. See the full data…
Email Deliverability
Warmy vs. Mailtrap: The right tool for email deliverability in 2026
Warmy and Mailtrap are both described as email deliverability tools, yet they serve different needs. Mailtrap is an…
![Best Email API for SaaS: Deliverability and Speed [2026]](https://www.warmy.io/blog/wp-content/uploads/2026/06/Copia-de-Blog-9.jpg "Best Email API for SaaS: Deliverability and Speed [2026] 5")
Best Email API for SaaS: Deliverability and Speed [2026]
Mailtrap leads in inbox placement (78.8%) and setup speed (~5 minutes), making it the top pick for SaaS…
Best Email Warm-Up Tools for B2B Sales (2026)
Global average inbox placement rates sit at only 85 percent, meaning 1 in 6 emails never reaches the…
Email Marketing
Best Email Warm-Up Tools for B2B Sales (2026)
Global average inbox placement rates sit at only 85 percent, meaning 1 in 6 emails never reaches the…
Top 6 Inbox Placement Tools to Reduce Spam Rate (2026)
Inbox placement tools are diagnostic and improvement platforms that show senders exactly where their emails land across major…
Top 7 AI Tools for B2B Email Deliverability (2026)
According to Validity’s research, roughly one in six emails never reaches the inbox, keeping the global average inbox…
Email Warmup
7 Best Email Warmup Tools for Improving Sender Reputation (2026)
Compare the best email warmup tools for building and protecting sender reputation. Learn what separates effective tools, what…
Email Deliverability Tools with Customizable Warmup Schedules: The 2026 Expert Guide
Compare top email deliverability tools with customizable warmup schedules. Learn which features matter and find the best solution…
Best Warmup Solutions for High-Volume Email Senders: What You Need to Know in 2026
Key takeaways High-volume email warmup requires SPF, DKIM, and DMARC authentication, a clean list, and a dedicated sending…
Product Updates
Workspace Management in Warmy: Separate Billing, Teams & Access
Agency owners and multi-brand businesses managing email deliverability for multiple clients face a critical challenge: how to keep…
Seed List for Microsoft 365: Why Email Marketers Need It in 2026
A Microsoft 365 seed list is a curated set of genuine Microsoft 365 mailboxes that receive your campaign…
Warmy API: New Endpoints for Mailbox Headers, Warmup Statistics, and Domain Monitoring
We’ve released a new set of API v2 endpoints that give developers and technical users significantly more control…
Spam & Blacklists
What Is the Spamhaus Blacklist and What Does It Do to Your Email Deliverability?
Spamhaus can kill your email deliverability overnight. Warmy's 2026 research breaks down every list, what triggers them, and…
SURBL Blacklist: What Is It, Why You Get Listed, and How to Fix It
This SURBL blacklist report by Warmy.io discusses what triggers a SURBL listing, how to check your domain, and…
The Barracuda Reputation Block List: What Every B2B Email Sender Must Know
The Warmy Research Team breaks down how the Barracuda Reputation Block List works, what triggers an IP listing,…
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