Built for Freedom & Deliverability

Engineered for senders who refuse to be penalized for growth.

Never dread growing your audience. Get primary inbox delivery, automatic list protection, and total reader ownership — without ever paying a ransom for your own subscribers.

Writing Studio

Write, preview, and format with zero friction

A clean writing environment with live mobile preview and instant test sends. Personalize with reader names like {{first_name}} and write in rich text or Markdown.

  • Clean, distraction-free writing studio
  • Instant mobile phone preview (see how it looks on iPhone & Android)
  • Personalize with reader names using simple {{first_name}} tags
  • Send test emails to your inbox with 1 click
Insert Token:
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Issue #42: Breaking the Email Subscriber TaxOptimal 47 chars
Words: 142Reading time: 42s
Top Delivery

Emails that reliably land in the primary inbox

We take care of all the background technical setups so your emails land in front of real readers, not trapped in the spam or promo abyss.

  • Easy 1-click unsubscribe button in Gmail & Yahoo readers
  • Automatic removal of dead or invalid email addresses
  • Continuous reputation checks protect your sender score
  • Real-time delivery stats you can count on
Deliverability Health & Anti-Spam Telemetry
Reputation: Pristine
Hard Bounce RateSafe
0.04%/ warning threshold 2.00%
0.00%Pause: 2.0%Lock: 5.0%
Spam Complaint RateSafe
0.00%/ warning threshold 0.10%
0.00%Pause: 0.10%Lock: 0.30%
DKIM 2048 100% Aligned
SPF Record Strict Pass
RFC 8058 Header Signed
Amazon SES SNS Webhook: Active & Listening
Audience & Contacts

Keep unlimited subscribers without expensive penalties

Never worry about crossing subscriber limits. Store as many readers as you want, import your contacts in 1 click, and export your list anytime.

  • Unlimited contacts on every single plan
  • 1-click CSV import from Substack, Mailchimp, or Beehiiv
  • Automatically catches typos like user@gmial.com
  • Filters out fake bots and temporary email addresses
Live Audience Intake & MX Hygiene Validator
10,143 Domains Filtered
Try presets:
RFC 5322 Syntax
Valid Structure
MX DNS Resolution
ASPMX.L.GOOGLE.COM (12ms)
Disposable Filter
Permanent Inbox
Verified Subscribers in QueueScore
alex.turner@gmail.com
100%
elena.rostova@icloud.com
99%
jordan.bell@outlook.com
100%
Newsletter Website

A free website and public home for your publication

Every newsletter you send automatically posts to your clean, fast website. Readers can discover your past writing, share links, or follow via RSS.

  • Clean reader website hosted at your own publication link
  • Past editions are easy for new readers to browse and share
  • Includes built-in RSS feed for feed reader apps
  • Fast loading with zero tracking bloat
mailjinny.com/archive/engineering-dispatch/p/edition-42
The Engineering Dispatch · Edition #42 Nov 6, 2026 4 min read● Google Indexed

Scaling Distributed Webhook Delivery to 10M Events/Day Without Dropping Packets

When delivering notifications across thousands of customer endpoints, transient HTTP timeouts and exponential backoff loops can quickly overwhelm traditional database tables. Here is how we decoupled our delivery queues using Redis streams and automated circuit breakers...

"Every newsletter you send on MailJinny automatically earns organic search authority and permanent reader access."
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Every feature on every plan, from $19 a month for 25,000 emails.

Security & Peace of Mind

Passwordless login with complete privacy

Log in securely using a quick 6-digit magic code sent to your email. No passwords to remember or lose. Manage multiple publications from one dashboard.

  • Simple 6-digit magic code login (no passwords needed)
  • Manage multiple publications under one account
  • Automated protection against unauthorized access
  • Complete data privacy — download your data anytime
Operator Authentication & 2FA Gate
Passwordless Security Active
Registered Operatoradmin@mailjinny.com
Super Admin
Expires in 09:14
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Brute Force Defense
3-Attempt Rate Lockout
Workspace Isolation
Account-Scoped Sessions
Verified & Authenticated

Experience the difference of zero subscriber tax.

Whether you send 5,000 or 500,000 emails, MailJinny gives you enterprise-grade infrastructure without predatory pricing.