Engineered for high-volume sending
- Purpose-built for mission-critical delivery
- Enterprise security and compliance-ready
- Infrastructure built for scaling/scalability
- Feature-rich interface for enterprise needs
- Custom pricing for high-volume
- Dedicated support
"We have over 500K traders that use our mobile and web applications. We send a monthly average of 40 lakh transactional emails for daily reports, billing, digitally signed reports, retention statements, and more. ZeptoMail's SMTP has helped us achieve affordable and reliable delivery."
Nallenthran
I T Head, Alice Blue India
Delivery-first approach
A decade-long expertise in powering business-critical transactional email
Dedicated infrastructure
ZeptoMail is purpose-built for transactional emails, separating them from marketing traffic to guarantee the best deliverability at scale. This single-purpose architecture ensures consistent, high-speed delivery for every message.
Dedicated IP
For high-volume senders with strong delivery reputations, ZeptoMail provides dedicated IPs, giving you complete control over sender reputation, email throughput, and delivery performance.
Fast delivery
ZeptoMail’s laser focus on transactional emails means our delivery is optimized for speed. It ensures lightning-fast delivery, achieving industry-leading time-to-inbox speeds.
Delivery Time
Zoho Mail
0.0sGmail
0.0sApple
0.0sOutlook
0.0sAOL
0.0sYahoo
0.0sAbove data is the average of last 24 hours and updated every 5 minutes
Enterprise-grade security and compliance
Our data centers, located across the globe, are under 24/7 surveillance and multiple access fortifications to ensure physical security. The hardware is built and maintained with advanced technology and the utmost security.
Every enterprise-level business needs to comply with a set of regulations. ZeptoMail meets and exceeds major global compliance standards including GDPR, HIPAA, and SOC 2, reaffirming our unwavering commitment to privacy, security, and regulatory compliance.
Whether it’s being stored or it’s being delivered, securing the data is ZeptoMail's utmost priority—encrypted both at rest and in transit. The data is encrypted with advanced techniques when stored at the data center and is transmitted through secure channels during delivery.
Email security protocols in ZeptoMail ensure that your email and your sender reputation are well-protected against unauthorized parties. We employ DKIM and DMARC to protect your domain from spoofing and phishing.
Flexible plans for every enterprise
ZeptoMail offers usage-based pricing that scales with your needs.
- Custom plans for high-volume sending
- Free trial
- Pay-as-you-go email credits
- No hidden costs
per credit
1 credit* = 10,000 emails
Example:
With 3 credits, you get 30000 emails that are valid for 6 months
*Each credit is valid up to 6 months from purchase
Estimate your cost
*Emails sent to each recipient is counted as an individual email.
Customer support
Our expert support team is available 24/7 to resolve your technical queries and ensure uninterrupted email delivery—because your business can’t afford downtime.
Built for enterprise needs
Easy integration
Integrate ZeptoMail seamlessly using simple SMTP credentials, powerful APIs and SDKs for deeper integrations with your ERP, CRM, or custom applications.
Email segmentation
Enterprise email sending is multi-layered, and often needs segregation. With ZeptoMail, segment emails into Agents with their own SMTP/API credentials, analytics, and logs.
Email analytics
Get real-time insights into delivery status, bounce rates, and engagement metrics. In-depth email analytics allows businesses to stay on top of email deliverability.
Bounce handling
Detailed bounce reports in ZeptoMail allow you to see your bounce count, bounce categories based on reasons, and distribution of bounces across domains and Agents.
User management
Manage access for your teams easily. Assign roles, control access, and monitor activities at scale with granular user management.
- Explore all of the features