Deliverability
Email Warm-Up: What It Is and Why It Matters
Complete guide to email warm-up for new domains and IPs. Learn how to build sender reputation and avoid spam filters from day one.
February 16, 20266 min read
Read Articles by Vespera (4)
Deliverability
Email Deliverability Best Practices for 2025
Complete guide to improving email deliverability with authentication, list hygiene, content optimization, and sender reputation management.
January 26, 20269 min read
Read 
Email Marketing
Google's Gmail Inactive Account Cleanup: What You Need to Know
Google is deleting inactive Gmail accounts. Learn how this affects your email list and what you can do to protect your campaigns.
January 5, 20266 min read
Read 
Technical
Disposable vs Role-Based Emails: What's the Difference?
Understand the difference between disposable and role-based email addresses, and learn how to handle each type in your verification workflow.
December 15, 20254 min read
Read Ready to start verifying emails?
Get 1,000 free credits when you sign up. No credit card required.
Start Free Trial