ZeptoMail High-Deliverability Transactional Email Service

Zoho ZeptoMail is a reliable transactional email service for sending triggered emails such as password resets, OTP and verification messages, payment reminders, invoices, and order confirmations. CRMOZ can configure ZeptoMail SMTP, integrate the ZeptoMail API, authenticate your sender domain, and help you monitor deliverability, bounce rate, email logs, and analytics.

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Challenges That Lead Businesses to ZeptoMail

Delivery failures

Inconsistent delivery and limited control impact your business and customer trust.

Limited visibility

Lack of real-time insights makes it hard to troubleshoot and improve performance.

Complex pricing

Usage-based pricing with hidden costs makes scaling expensive and unpredictable.

Slow
​support

Generic responses and long wait times slow you down when it matters most.

Powerful ZeptoMail Features

Reliable Transactional Email Delivery

Zoho ZeptoMail is a transactional email service built for fast delivery of triggered emails, including password resets, OTP and verification codes, order confirmations, payment receipts, and account notifications. Reliable infrastructure and proper sender domain authentication help improve deliverability and ensure that critical messages reach customers when they expect them.

ZeptoMail API, SMTP and Email Authentication

Connect Zoho ZeptoMail to your website, CRM, online store, or custom application using the ZeptoMail API or ZeptoMail SMTP. Secure API tokens enable controlled sending, while ZeptoMail SPF, DKIM, and DMARC records authenticate your sender domain, protect its reputation, and support better inbox placement.

Templates for Every Transactional Email

Create a reusable order confirmation email template, password reset notification, OTP message, invoice, or payment reminder message. Zepto Mail lets you organize triggered emails by sender domain, application, purpose, or message type using separate Mail Agents. Promotional newsletters and drip campaign emails should remain separate from transactional communication.

Email Logs, Webhooks and Analytics

Monitor every Zoho transactional email through detailed email logs and real-time email analytics. Track deliveries, opens, clicks, failures, and bounce rate, while webhooks send instant status updates directly to your application. These insights help identify delivery problems, protect sender reputation, and continuously improve ZeptoMail deliverability.

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Control How and Where Emails Are Sent

IP Restrictions

Allow sending only from authorized IP addresses.

Sending Limits

Set warning and blocking limits for each Mail Agent.

Sender Addresses

Manage verified senders across domains and applications.

Dedicated IP

Give eligible high-volume senders greater reputation control.

Suppression Lists

Prevent repeated sending to invalid or blocked addresses.

Sandbox Agents

Test SMTP, API, webhooks, and bounces safely.

Connect ZeptoMail With the Tools You Already Use

Integrate ZeptoMail with your favorite applications and automate transactional email workflows. Connect websites, CRM systems, automation platforms, and template builders to ensure fast and reliable email delivery across your business processes.

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FAQ

Zoho ZeptoMail is a cloud-based transactional email service designed for sending automated, time-sensitive messages triggered by user actions or system events. Businesses use Zepto Mail to deliver an order confirmation email template, password reset link, OTP or verification code, payment receipt, shipping update, and payment reminder message.

You can connect Zoho ZeptoMail to a website, CRM, e-commerce platform, or custom application through the ZeptoMail API or ZeptoMail SMTP. The platform also provides API tokens, webhooks, email logs, bounce-rate monitoring, and email analytics to help businesses track delivery and improve deliverability.

Unlike a standard mailbox, ZeptoMail is built specifically for reliable Zoho transactional email delivery at scale.


ZeptoMail is designed for triggered emails sent to individual recipients after a specific action. These include password resets, OTP and verification messages, invoices, payment reminders, and order confirmations. Marketing email services are intended for newsletters, promotions, bulk announcements, and automated sequences such as a drip campaign. Separating transactional email from promotional traffic helps protect the sender domain’s reputation and prevents high bounce rates or spam complaints from affecting critical customer communications.
No email service can guarantee inbox placement, but correct ZeptoMail SPF, DKIM, and DMARC configuration significantly improves email authentication and deliverability. Add and verify your sender domain in ZeptoMail, copy the generated SPF and DKIM values, and publish them in your domain’s DNS settings. If your domain already has an SPF record, add the ZeptoMail value to the existing record instead of creating another one. After DNS propagation, verify both records in ZeptoMail and configure DMARC to define how receiving servers should handle authentication failures. Continue monitoring email logs, bounce rate, webhooks, and email analytics because sender reputation, recipient quality, message content, and sending consistency also affect inbox placement.
Current ZeptoMail pricing for 10,000 emails is US$2.50 for one credit. One credit includes 10,000 transactional emails and remains valid for up to six months. ZeptoMail uses a pay-as-you-go model, so there is no required monthly subscription. If you send approximately 10,000 order confirmations, password resets, OTP messages, payment receipts, or other triggered emails each month, the estimated platform cost is about US$2.50 per month, excluding taxes and integration services. Pricing can change or vary by region.
You can integrate Zoho ZeptoMail through ZeptoMail SMTP or the ZeptoMail API. SMTP is suitable for websites, CRM systems, CMS platforms, and online stores that already support external email servers. The API provides more control over triggered emails, dynamic content, templates, recipients, and sending events. Developers can use API tokens for secure authorization and webhooks to receive real-time updates about deliveries, opens, clicks, and bounces. After integration, email logs and email analytics help monitor deliverability and troubleshoot unsuccessful transactional email delivery.
Zoho ZeptoMail can send triggered emails such as password resets, OTP and verification messages, account alerts, payment receipts, invoices, shipping notifications, subscription updates, a payment reminder message, and an order confirmation email template. These messages are generated by a specific customer action or system event and usually contain information intended for one recipient. ZeptoMail is not intended for newsletters, promotional broadcasts, or a drip campaign, which should be managed through a dedicated marketing email service.

Ready to Move Your Email to ZeptoMail?

Switch to ZeptoMail for fast, reliable, and secure delivery of transactional emails. Ensure that OTPs, invoices, order confirmations, password resets, and other critical messages reach customers on time. With detailed delivery reports and easy integration, your business can improve customer trust while keeping email costs under control.


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