Conecsy provides a high-deliverability Email API and SMTP relay for sending transactional, OTP, and marketing emails at scale. Designed for enterprises, our platform ensures strong inbox placement, security, compliance, and real-time engagement tracking.
Use the OTP below to complete your login. This code is valid for 5 minutes.
Enterprise email services enable businesses to send high-volume, secure, and reliable emails programmatically using APIs or SMTP instead of consumer email tools.
An Email Service allows applications, websites, and platforms to send transactional and marketing emails using REST APIs or SMTP relay with delivery tracking and authentication.
Unlike personal email providers, enterprise email platforms are built for scale, deliverability, security, compliance, and analytics, ensuring messages consistently reach the inbox.
Different email types serve different business needs — from critical transactional alerts to large-scale marketing campaigns.
Transactional emails are system-generated messages triggered by user actions and application events. These emails are time-critical and prioritized by mailbox providers.
Your order #ORD-24591 has been confirmed.
We’ll notify you once it ships.
TransactionalPromotional emails are used for marketing campaigns, newsletters, announcements, and customer engagement messages sent to opted-in users.
Flat 30% OFF on your next purchase.
Use code SALE30
PromotionalOTP and alert emails deliver security-sensitive information such as login verification codes and critical system alerts.
Your OTP is
Valid for 5 minutes.
OTP / AlertTriggered emails are automatically sent based on user behavior or system events to improve engagement and conversion.
Your cart is waiting for you.
Complete your purchase now.
TriggeredPreview how transactional, OTP, and marketing emails appear in real inboxes before sending them to customers.
Understand how emails are authenticated, processed, and delivered after an API or SMTP request is initiated.
Your application or system sends an email using API credentials or SMTP authentication.
Sender domain, credentials, and headers are validated to ensure authorized usage.
The email is queued, rate-limited, logged, and prepared for outbound delivery.
Emails are routed through optimized outbound servers with retry and failover mechanisms.
The recipient’s mail server accepts the email and responds with delivery status.
All stages are monitored in real time, allowing delivery tracking, retries, and failure diagnostics.
Inbox placement depends on authentication, sender reputation, engagement signals, and consistent sending practices.
Measure email delivery performance and recipient engagement using real-time metrics such as opens, clicks, bounces, and conversions.
Metrics update continuously based on delivery acknowledgements and recipient actions.
Send emails using modern REST APIs or traditional SMTP relay — designed for developers, applications, and enterprise systems.
Modern JSON-based API for transactional and bulk emails.
POST /v1/email/send
{
"to": "user@example.com",
"subject": "Welcome",
"html": "<h1>Hello</h1>"
}
Use standard SMTP credentials with any email client or server.
SMTP Host: smtp.yourdomain.com
Port: 587
Auth: Yes
TLS: Enabled
Built-in security and compliance controls ensure safe delivery, data protection, and adherence to global email regulations.
Simple, transparent pricing based on volume and delivery needs.
Businesses across industries rely on email for reliable communication, engagement, and compliance-critical messaging.
Answers to common questions about email delivery, security, compliance, and enterprise scalability.
Integrate our Email API or SMTP relay to send transactional, OTP, and marketing emails with enterprise-grade reliability.
Reach out for pricing, enterprise integrations, or a custom demo.