Mailchimp
Marketing suiteThe best-known all-in-one email tool, with a large template library, landing pages and a huge list of integrations. Pricing grows with the size of your audience.
Cortex Mail sends through Amazon SES, yours or ours. It connects to your lead management system, welcomes every new lead within a minute, keeps them warm with drips that run for six months or more, and tells your sales team the moment someone taps "I am interested".
Email Composer: live List Cleaner: live Sending and drips: early access
Most email tools were built for newsletters. Cortex Mail is built for businesses that get leads every day and need them called back, such as real estate, education, healthcare, finance and automobile dealers.
Amazon SES is one of the cheapest ways to send email at scale; Amazon lists it at about $0.10 per 1,000 emails. Connect your own account and Amazon bills you directly, or use ours and pay one plan in rupees.
Mail goes out signed with your own domain (DKIM, SPF and DMARC), not a shared marketing domain. Your good sending history stays yours.
The composer turns the creative your designer already made into a light, seamless email with live text, Call and WhatsApp buttons and a compliant footer.
"I am interested" and "Edit your details" buttons carry the reader's own name, email and phone. One tap confirms, the lead is updated in your LMS and sales gets an alert.
Opened or clicked in the last 5, 10, 25 or 100 campaigns, opened but did not click, replied, bounced, never opened, city or a radius around a pincode, age and gender from your LMS.
An instant welcome email, then a journey of 180 days or more that changes path when a lead clicks the price list, books a visit or goes quiet.
Replies are collected per contact, marked in segments and forwarded to your team, so a reader who writes back is never lost in a no-reply box.
Gmail and Yahoo require a one-click unsubscribe, and we honour it. Readers who open the footer link first see a preference page that offers fewer emails or other topics, and can tell you why they are leaving.
Many lead management systems can send email. That is fine for one-to-one notes and alerts to your team. For campaigns to thousands of leads, a dedicated sender protects your domain and your results.
Swipe the table sideways to see every column.
| What matters | Built-in LMS or CRM mailer | Cortex Mail |
|---|---|---|
| Inbox placement | Often a shared SMTP server or the LMS vendor's domain; one bad sender on the same server can hurt everyone. | Amazon SES with your own domain signed by DKIM, SPF and DMARC; volume ramped up gently on new domains. |
| Bounces and complaints | Usually logged, rarely acted on; bad addresses keep getting mail. | Hard bounces and complaints are stopped automatically after every send. |
| Unsubscribe | Often a manual flag; no one-click header. | One-click unsubscribe as Gmail and Yahoo require, plus a preference page and reasons. |
| Design | Basic text templates; image-only mails that land in spam. | Creative-to-email composer: seamless strips, live text, real buttons, alt text. |
| Segments | By lead stage or source. | Lead stage and source plus email behaviour: opened, clicked, replied, last N campaigns, location radius. |
| Drips | Limited steps, rarely branch on clicks. | 180 days or more, branches on clicks, visits and silence. |
| Large sends | Can slow the LMS or hit daily limits. | Queued and paced for SES, so 2 lakh emails go out without touching your LMS. |
| Reports | Sent and maybe opened. | Delivered, opens with machine opens flagged, clicks, replies, by city and by inbox provider. |
| Best for | One-to-one emails and internal alerts. | Campaigns, welcome emails and nurture journeys to every lead. |
Keep using your LMS as the source of truth. Cortex Mail reads leads from it and writes interest, replies and unsubscribes back. How the connection works.
Grouped by the kind of tool, because tools in the same group work the same way. Each one is described individually below.
Swipe the table sideways to see every column.
| Feature | Cortex Mail | Marketing suites Mailchimp, ActiveCampaign, HubSpot, GetResponse, MailerLite, Zoho Campaigns, Brevo |
SES-based senders BigMailer, MailBluster |
Email APIs SendGrid, Mailtrap |
|---|---|---|---|---|
| Who sends the mail | ✓ Your Amazon SES or ours | The vendor's own servers | ✓ Your Amazon SES (some also offer theirs) | The vendor's servers |
| What the price follows | Plan in rupees; with your own SES, Amazon bills sending at its own rate | Mostly the number of contacts you store (Brevo: emails sent) | Contacts or a flat fee, plus your SES bill | Emails sent |
| Creative to seamless email | ✓ Built in | ◐ Drag-and-drop editors; slicing by hand | ◐ Editors; slicing by hand | ✕ Code it yourself |
| "I am interested" back to your LMS | ✓ One tap, confirmed, alerts sales | ◐ Possible with forms, CRM add-ons or Zapier | ✕ Not built in | ✕ Build it yourself |
| Call and WhatsApp buttons with country codes | ✓ Built in | ◐ Add links by hand | ◐ Add links by hand | ✕ |
| Segments by last N campaigns | ✓ 5, 10, 25, 100 or any number | ◐ Varies; often "opened any of the last N" | ◐ Opened or clicked filters | ✕ |
| Radius around a pincode | ✓ | ◐ Some offer location by IP | ✕ | ✕ |
| Long drips | ✓ 180+ days, branches on clicks | ✓ Strong in ActiveCampaign, HubSpot, GetResponse | ◐ Simpler sequences | ✕ Build it yourself |
| Typo fixing on import | ✓ gmial.com → gmail.com | ◐ Rejects bad formats | ◐ Rejects bad formats | ✕ |
| Landing pages, webinars, social posts | ✕ Email only, done well | ✓ Many include them | ✕ | ✕ |
| Integrations and track record | ◐ New; webhooks, API and CSV today | ✓ Hundreds of integrations, years of history | ◐ Fewer integrations | ✓ Mature APIs and SDKs |
Based on each vendor's public material as of October 2026. Features and plans change; check the vendor's site before you decide. ✓ built in · ◐ partly or with extra work · ✕ not offered.
Every tool here is good at something. This is when each one is the right choice, and when Cortex Mail fits better.
The best-known all-in-one email tool, with a large template library, landing pages and a huge list of integrations. Pricing grows with the size of your audience.
Known for its deep automation builder, lead scoring and built-in CRM. Priced by the number of contacts.
A full CRM with marketing, sales and service hubs. Very capable, and costs rise as your marketing contacts grow.
Formerly Sendinblue. Email, SMS and WhatsApp campaigns with a CRM, mostly priced by emails sent rather than contacts stored.
Email with landing pages, webinars, funnels and automation in one place.
Simple, tidy and affordable, with a good editor, landing pages and a free plan for small lists.
Email marketing that works closely with Zoho CRM and the rest of the Zoho suite. Zoho also runs ZeptoMail for transactional email.
Campaigns through your own Amazon SES (or theirs), with support for many brands in one account. A good way to get SES prices with a friendly interface.
A lean, low-cost campaign tool that sends through your own Amazon SES or SMTP.
Twilio's email service: a developer API for app emails, plus a marketing campaigns module.
Started as a safe inbox for testing emails during development, and now also sends transactional and bulk email.
No tool can promise the Primary tab; Gmail decides tabs from the content and from how your readers behave. These are the things that do move mail out of spam and towards the inbox, and Cortex Mail does each of them by default.
DKIM, SPF and DMARC on your domain, with a custom MAIL FROM so everything lines up. How to set it up.
Typos fixed, duplicates removed, bounces and complaints stopped. Keep the bounce rate under 2% and the complaint rate under 0.1%.
Big sends start with people who opened or clicked recently, so mailbox providers see good reactions early.
A short live-text block, real buttons, alt text and a plain-text version. Image-only emails are a common spam signal.
A one-click unsubscribe header and a visible footer link. People who cannot leave press "Report spam" instead.
New domains are warmed up over a few weeks, and sending is paced rather than dumped in one burst.
About open rates: Apple Mail loads images for privacy, which counts as an open even when no one reads the email. Cortex Mail marks those machine opens so your open rate and your segments reflect real readers.
We are onboarding a small number of businesses so each setup gets personal attention. Tell us about your list and your LMS, and we will reply within two working days.
Until then, the Email Composer and Email List Cleaner are free to use.
The Email Composer and Email List Cleaner are live and free. Sending, segments and drips are in early access: request a place and we set up your workspace with you.
No sender can. Gmail decides tabs from the content and from how readers react. What we control is authentication on your own domain, clean lists, steady sending volume, real text and buttons instead of one big image, and easy unsubscribes. Those are the things that move mail out of spam and towards the inbox.
No. You can send through ours after verifying your domain, or connect your own Amazon SES account so Amazon bills you for sending directly. You can switch later.
Any system that can call a webhook or an API, or export a CSV. That covers most lead management systems, Zoho CRM, HubSpot, Salesforce, LeadSquared, Google Sheets and website forms. See the Connect your LMS guide.
Yes. Export your contacts together with the unsubscribed, bounced and complained lists. We import all of them so people who left never get mail again.