AI for email marketing that runs your inbox programme end to end
Drafts campaigns, subject lines, and full flows in your brand voice.
Segments lists, schedules sends, and runs A/B tests across every campaign.
Brain AI holds your past best-performers, segments, and brand voice so the open rate climbs.

Every email marketing workflow in one platform
Email marketing runs on the campaign, the segmentation, the testing, and the performance analysis that ties them together. Sintra runs all of it in one platform. Twelve specialised functions across drafting, sending, testing, and reporting, all sharing your brand voice and segments through Brain AI.

What slows down email marketing
AI for email marketing should multiply your sends without dropping the open rate. These are the drains every team runs into.
Subject lines are guesswork
You wrote five subject lines. You picked the one that felt right. The one you didn't pick might have opened twice as well.
Campaigns ship late
The newsletter goes out Tuesday, not Monday. Every week. Then nobody reads Tuesday emails as carefully.
Nurture sequences sit stale
The welcome flow was written eighteen months ago. The product has changed. The flow hasn't.
Segmentation is broad
Everyone gets the same email. The conversion rate reflects the lowest-common-denominator copy.
Performance reporting is reactive
Open rate, click rate, conversion rate. Each campaign's data sits in a tab until someone asks.
Deliverability quietly drops
Inbox rate slipped 8% this quarter. Nobody caught it until the open rate caught up.
How AI for email marketing runs your programme, function by function
Each role is built for one part of the email workflow. Brain AI holds your past best-performers, segments, and brand voice.
Draft campaign emails and subject lines

Build welcome flows and nurture sequences

Segment lists by behaviour and signal

Run A/B tests across copy and timing

Pull weekly campaign and flow performance

Refresh stale sequences against current product

Audit deliverability and inbox placement

Generate transactional and lifecycle emails

How marketers actually use AI for email marketing
Five workflows that move the inbox programme to system.
Newsletter cadence
AI takes the week's content, drafts the newsletter in your voice, A/B tests subject lines, and queues the send. The newsletter ships Monday morning instead of Tuesday afternoon.

Welcome flow refresh
AI audits the welcome flow against current product, drafts updates, and queues the refresh. The first impression stops being eighteen months old.

Segmentation
AI segments your list by engagement, behaviour, and signal. Each segment gets the tailored version of the campaign. Conversion rates climb because the message fits.

Campaign launch
Drop the launch goal into Brain AI. AI drafts the campaign, builds the sequence, and queues the segmentation. Launch-week prep drops from a week to an afternoon.

Performance reporting
AI pulls open, click, and conversion by campaign, drafts the insight narrative, and queues the deck. Monday's report is ready before the standup.

Twelve AI tools for email marketing, one subscription
Each role is built for one part of the email programme. They share your past best-performers, segments, and brand voice through Brain AI.
Brain AI keeps every send sounding like you
Drop your past best-performing campaigns, brand voice, segments, and product knowledge into Brain AI. Every output reads from it before it writes. The newsletter, the welcome flow, the launch campaign all reflect the same brand because they share one source. 93% of users see response accuracy improve once Brain AI is populated.
93%
Of users report increase in response accuracy after filling Brain AI.
5.2 hours
Saved for users per week by eliminating repetitive context-setting.

As users continue to engage with Brain AI, they experience ongoing improvement in their critical thinking skills and cognitive abilities.
Plugs into the email and CRM stack you already use
Google
Drive
Gmail

Google Calendar


Outlook
Notion

Quickbooks

Microsoft

Strava

Google
Analytics

Google
Drive
Gmail

Google Calendar


Outlook
Notion

Quickbooks

Microsoft

Strava

Google
Analytics

Google
Drive
Gmail

Google Calendar


Outlook
Notion

Quickbooks

Microsoft

Strava

Google
Analytics

How to start
Three steps from sign-up to your first AI-drafted send.
Connect your stack
Link your email platform, CRM, and CMS. Set up takes ten minutes.

Fill Brain AI
Drop in three past best-performing campaigns, brand voice notes, and your segment definitions.

Run the first send
Ask AI to draft this week's newsletter. Real output before Monday.

With great powers
comes great privacy.
Encrypted by design
From your first login to the last addition in your business knowledge vault, every interaction is encrypted in transit and at rest. This means that neither Sintra nor any third party can access your files or analytics.
Full Data Ownership
"Your content, your strategy, your AI - they belong entirely to you. At any time, you can delete your data or export it. We don’t train models on it or resell it, and your Brain AI is built exclusively on your own assets.
GDPR Compliant
We follow the highest standards of data protection under the GDPR framework. Your personal information is collected and stored transparently - with clear rights to access, modify, or delete your data at any time.
Pricing built for email marketing teams
One subscription gives you all 12 functions, Brain AI, and the full integration list. No per-send fees, no per-subscriber charges. 14-day money-back guarantee on your first paid month.
Used by more than
50,000+ founders.

I can’t recommend SintraAI enough. It’s like having a personal business coach 24/7, mapping out steps to grow my company and clarifying my priorities. I feel a renewed sense of focus and control every day.
December 29, 2024 • Socrate Concepcion • US

Each AI bot tackles my to-do list, from scheduling tasks to crawling my website for SEO tips. I love how it set up calendar reminders for all my commitments. Sintra.ai is well worth every penny, especially for a busy single-person business.
December 14, 2024 • Jennifer Glenn • US

As an entrepreneur launching a new venture, Sintra.ai has made a real difference. The AI assistants are like personal staff I can rely on. And whenever I needed support, the team was on point. A must-try for any budding business!
December 21, 2024 • Custódio Barreiros • HU

I once had a large team, and although I loved my helpers, they needed constant motivation. With Sintra, there’s no drama, just new ideas that I can simply accept or reject. It’s a huge relief—100% recommended.
December 26, 2024 • Holly Wehde • US

Hiring Sintra was a great decision for my struggling boutique. They handle social media posts, guide my ads, and even offered a solution for double social media pages. Now I can focus on my inventory and customers.
December 17, 2024 • Michele Davis • US

Signed up for Sintra X—it felt overwhelming at first, but once it understood how I think, it turned into a creative powerhouse. Support is top-notch, and the daily integrations impress me.
Dec 10, 2024 • Sami Liftoff • US

I’m not usually one to give top marks, but once I got comfortable with Sintra’s 12 helpers, I was blown away by their efficiency. They churn out so many analytical ideas I have to pause and digest them. It’s sometimes overwhelming, but in a good way.
December 29, 2024 • lars • DK

Sintra integrates with all my favorite tools and these little helpers automate my tasks in a huge way. They actually learn my company’s style day by day. It’s a massive step up from generic AI chats.
December 30, 2024 • Michelangelo • IT

My life is simpler with Sintra. It handles content creation, next steps, brainstorming, and copy. I highly recommend it if you want to free up mental space for what truly matters in your business.
December 28, 2024 • Lionel D'Alvia • US

My “team” in Sintra knocks out tasks like magic, offering fresh ideas for efficiency and better customer outreach. It’s a relief knowing I have AI assistants ready to go around the clock.
December 31, 2024 • Kat Angelica • US

I’ve only been using Sintra for a couple of weeks, but the experience has been great—especially with the social media bot reaching out to me with new ideas. The pull model feels super proactive and makes me more confident in my daily tasks.
December 30, 2024 • Bayan Qandil • US

I challenge anyone to compare other platforms to Sintra.ai and their staff—you won’t find a better customer experience. Everyone is professional, responsive, and genuinely cares about helping. Truly top-notch!
December 28, 2024 • Timothy Montjoy • US
This platform helps me like a full-time employee would. As a startup, I can’t afford extra staff, so Sintra stepped in to handle complex tasks and free me up for big-picture thinking.
December 28, 2024 • Jules Kincaid • US

I’m juggling multiple hats in my business, and these 12 AI “helpers” lighten the load. They even crack jokes and celebrate milestones with me! I saved thousands in consultant fees by letting Sintra handle SEO and content tasks.
December 30, 2024 • Michelle Smith • US

This platform helps me like a full-time employee would. As a startup, I can’t afford extra staff, so Sintra stepped in to handle complex tasks and free me up for big-picture thinking.
December 24, 2024 • Domanic R.H • US



Data-Backed Results From Real Users
+37%
Revenue growth in the first 90 days
5x
Faster content production across all channels
20h
Saved weekly on admin, support, and content work
80%
Of repetitive tasks fully automated
Run your email programme on AI
Twelve functions, one subscription, no second email hire. Get Sintra, drop your past best-performers into Brain AI, and see your first send before Monday.
Frequenly asked questions
It integrates with the major email platforms via approved connections. The integration list keeps growing.
Brain AI holds your voice samples. Every send reads from it. The more best-performers you upload, the tighter the voice gets.
Both. AI drafts, schedules, and sends through your email platform. Anything that needs approval queues for your review.
AI monitors inbox placement, sender reputation, and engagement signals. Drops get flagged early with the fixes drafted.
Small lists get the highest segmentation leverage. The 14-day money-back guarantee lets you find out without committing.
















