12
● Production Ready · Enterprise Grade

Stop paying
for every email
you send

One script. Your server. A complete email gateway - SMTP, IMAP, DKIM, DMARC, tracking, IP rotation - deployed in 10 minutes. No per-message fees, ever.

Get Started Contact Us
root@server:~
$ ./setup.sh --domain example.com --ip 203.0.113.10
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
[i] Sendjot Mail Engine v2.0 - Full Stack Deploy
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✓ Step 1/12 System update & packages
✓ Step 2/12 Hostname configuration
✓ Step 3/12 Security hardening
✓ Step 4/12 TLS certificates (auto-provisioned)
✓ Step 5/12 SMTP engine (send configured)
✓ Step 6/12 IMAP engine (mailboxes ready)
✓ Step 7/12 DKIM signing (2048-bit keys generated)
✓ Step 8/12 DMARC + SPF (policy active)
✓ Step 9/12 Bounce processor (auto-monitor)
✓ Step 10/12 Mail tracking (real-time daemon)
✓ Step 11/12 IP rotation (smart balancing)
✓ Step 12/12 Firewall (locked down)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✓ All 12 steps complete. Your mail server is live.
[i] SMTP: 587 | IMAP: 993 | Tracking: online | DKIM: signed
MAIL · ENGINE · V2.0
SMTP Engine IMAP Inbox DKIM Signing DMARC Policy SPF Auto TLS IP Rotation Mail Tracking Bounce Processing Spam Filter Multi-Tenant SMTP Relay SMTP Engine IMAP Inbox DKIM Signing DMARC Policy SPF Auto TLS IP Rotation Mail Tracking Bounce Processing Spam Filter Multi-Tenant SMTP Relay
Features

A complete email stack.
One script.

Every service configured, hardened, and ready. No plugins, no add-ons.

01

Real-Time Analytics

Tracking daemon parses logs in real-time. Built-in stats via mailstats CLI - sent, bounced, deferred, rejected - per hour, day, domain, or IP.

Zero-Config DBmailstatsLive
02

One-Command Deploy

Single script deploys your entire email stack: SMTP, IMAP, DKIM, DMARC, SPF, TLS, bounce processing, tracking, IP rotation.

12 StepsAutomated
03

Multi-IP Rotation

Per-IP hourly/daily limits, automatic warmup, DNSBL monitoring.

WarmupDNSBL
04

Multi-Tenant & SMTP Relay

Dedicated or shared IPs per client. Separate DKIM, credentials, limits. Or run as a shared relay with tiered rates - starter, growth, pro, enterprise.

Tenant IsolationRelay ModeRate TiersPer-Client Auth
05

9-Engine Spam Filter

Weighted scoring. Reject, quarantine, or tag. Rate limiting per sender. Zero external deps. Hot-reload config via spamctl.

spamctlHot Reload
06

Bounce Processing

IMAP-based. Detects hard/soft bounces, extracts addresses, auto-suppresses.

IMAPAuto-suppress
07

Hardened Security

Mandatory access control. Firewall lockdown. Encrypted auth. TLS everywhere. Full DKIM/DMARC/SPF stack.

HardenedTLS
08

Send & Receive

Full bidirectional email. SMTP out on 587, IMAP inbox on 993. Catch-all replies.

SMTPIMAPCatch-All
Architecture

See how your mail flows

Every component orchestrated. Outbound mail is authenticated, filtered, signed & rotated.

OUTBOUND - PORT 587
Client
SMTP Auth
SMTP
:587
Spam Filter
9 Engines
DKIM Sign
2048-bit
IP Rotate
Policy
Delivery
Internet
Auth → Filter → Sign → Rotate → Deliver
INBOUND
INBOUND - PORT 25
Internet
Sender
SMTP
:25
SPF
Check
DMARC
Policy
DKIM
Verify
Inbox
IMAP
Receive → Verify → Authenticate → Store
Cost

The math is simple

$499
One-time setup fee Per server + up to 10 IPs. Lifetime license. No monthly fees. No per-email charges. Ever.
✓ Lifetime
Feature comparison
Mail EngineSendGridMailgunAmazon SES
Cost$499
lifetime / server + 10 IPs		$20-900+/mo$35-800+/mo$0.10/1K
VolumeUnlimitedPlan-basedPlan-basedQuota
Data ControlYour serverAPI accessAPI accessAPI access
IP RotationBuilt-inEnterpriseAdd-on-
DeliverabilityYou manageManagedManagedShared
REST APICLI + SMTPFull APIFull APIFull API
Self-Hosted✓---

$499 one-time per server + 10 IPs. Lifetime license. You only pay for VPS hosting after that.

Honest Talk

Will it reach the inbox?

Automated IP Warmup

Progressive limits over 30 days. Start small, build reputation, scale gradually.

DNSBL Monitoring

Continuous blacklist checking. Alerts the moment any IP appears on a blocklist.

Full Auth Stack

DKIM, SPF, DMARC, FCrDNS - all auto-configured. Pass every authentication check.

Bounce Suppression

Removes bad addresses automatically. Keeps bounce rate low, reputation healthy.

Real talk: Fresh IPs need 2-4 weeks of warmup. Gmail and Microsoft are strict with new senders. Mail Engine handles all the technical setup - building reputation takes patience and clean sending practices.
CLI Tools

Everything from the terminal

mailstats

Real-time delivery stats by time, domain, IP, or event type.

mailstats --today
$ mailstats --today

Mail Statistics - 2026-03-08
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  Sent         2,847
  Delivered    2,791    (98.0%)
  Bounced      32       (1.1%)
  Deferred     18       (0.6%)
  Rejected     6        (0.2%)
  Received     403
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

manage-ip

IP rotation, warmup tracking, DNSBL status.

manage-ip status
$ manage-ip status

IP Rotation Pool
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  IP              Day  Hourly   Daily   DNSBL
  203.0.113.10    30   500/500  8000    Clean
  203.0.113.11    22   400/400  6000    Clean
  203.0.113.12    8    100/200  1500    Clean
  203.0.113.13    3    50/50    500     Clean
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Prerequisites

System Requirements

Linux ServerRHEL-compatible OS
Domain + DNSA, MX, TXT, PTR records
Clean Public IPNot on major blacklists
Ports 25, 587, 993Open in VPS panel
Root AccessFresh server recommended
FAQ

Common questions

Depends on IP reputation, authentication, and sending practices. Mail Engine sets up DKIM/SPF/DMARC automatically and includes warmup tools. Fresh IPs need 2-4 weeks. Follow warmup schedules - most users achieve excellent placement.
Minimal. TLS auto-renews. Services auto-restart. DNSBL monitoring is automated. Just apply OS updates. Most spend <30 min/month.
Currently RHEL-compatible Linux only (AlmaLinux, Rocky, etc). Ubuntu/Debian is on the roadmap.
$499 one-time per server with up to 10 IPs. Lifetime license - no recurring fees, no per-email charges. Just your VPS hosting cost after that.
Mail Engine focuses on high-volume sending: multi-IP rotation, warmup, relay mode, multi-tenant, spam filter. Those tools are great for personal mailboxes. Different use case.
Every license includes priority support. Reach us at support@sendjot.com or call +91 9063 169 237 for integration help.

Deploy
tonight.

Get your license. Upload the script. Run one command. Your email infrastructure is live in minutes.

terminal
$ # Upload and deploy
$ scp setup.sh root@your-server:~
$ ssh root@your-server
$ chmod +x setup.sh && ./setup.sh --domain yourdomain.com --ip YOUR_IP
Get Your License Contact Us