EMAIL, FOLLOW-UPS AND CHANNELS

Your own email service and channels that publish on their own.

You get your own email system on your domain, a client base and follow-up emails that build interest step by step. Channels publish on schedule. You own all of it, and no platform charges you per contact.

Describe your taskfrom 190 €

Who it is for

  • Your contacts sit in spreadsheets, inboxes and forms. Nobody writes to them.
  • Your email tool costs more as your list grows. Your emails still land in spam.
  • You need a regular channel or round-up for your industry. You do not have an editorial team.

What you can order

Check why emails go to spam

from 190 €

We check the settings so your emails do not land in spam. We also check your domain reputation and list health.

Your own email service

from 690 € + from 90 €/month

You get an email system on your domain and a client base with a record of consent. You also get three follow-up emails in one language. Each extra language starts from 190 €.

Learn more →

Email campaigns we run

from 290 € per month

We write and send the emails. We watch opens and unsubscribes, and we slowly build trust with new subscribers.

Channel on schedule

from 990 € setup + from 190 €/month

A Telegram channel or round-up. We collect sources, choose what matters, write the posts and publish on schedule.

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One text, every network

from 590 € setup + from 140 €/month

One source piece goes out to all your accounts, in the right format for each.

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No cold emails to private people. We write only to people who left their contact. For companies, we send relevant business emails to work addresses. Every message has an unsubscribe link, as CNIL rules require.

Contact

One person reads this inbox — the same person who builds what you order.

Describe your task

Tell us what you have and what result you need — even a single small task. No brief required: within 48 hours you get a plan and a price in writing, a question, or an honest “not a fit”.

Include the situation, files or links, deadline, language, privacy limits and budget boundary if you have one.

File (optional)
No file chosen

A brief, a photo, a spreadsheet — whatever explains the task faster than words. Up to 8 MB, stored with our hosting provider. Please don't send sensitive personal or medical documents through the site.

Sending creates no order and no payment. We reply within 48 hours. Prefer email? contact@castel.studio

Talk to us

Prefer a call or a messenger? Write or call — the studio's founder answers.

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A one-person AI studio in Nice. Whoever answers your message is the one who does the work — no account managers in between. Files are processed on our own machine, not in someone else's cloud.

Nice 06100, France · Open in maps →

SIREN 103 115 705