“I want to send a promotion to 300 clients… why won't it let me use my @mycompany.com email?”
It's a very common question. And the answer is simple: your professional email is not designed for email marketing campaigns.
And if you try, you can block your entire domain — even personal emails will stop arriving!
Let's explain why… and what you can do instead.
What happens if you send mass emails from your cPanel or Gmail account?
When you send more than 100–200 emails in a short time from your mail server (whether in cPanel, Google Workspace or Zoho), major providers like Gmail, Outlook or Yahoo interpret this as suspicious behaviour.
Result:
- Your IP (your server's address) can be temporarily or permanently blocked.
- Your emails go straight to spam… or aren't even delivered.
- Even personal emails (invoices, meetings, support) stop working!
This is not a system "error": it's a global security measure against spam.
Why do servers limit mass sending?
Mail servers like @yourdomain.com are configured to:
✅ Protect the IP's reputation
✅ Prevent you from ending up on blacklists (like Spamhaus)
✅ Ensure your personal emails always arrive
That's why, if they detect you sending 300 emails in an hour, the system stops automatically. It's not a failure: it's a protection.
What to do if you need to send an email marketing campaign?
Don't worry! There are professional, affordable and easy-to-use tools specifically designed for this. Here are two ideal options for small and medium businesses:
1. MailerLite → Ideal for getting started
- Free for up to 1,000 contacts and 12,000 emails/month
- Modern templates, no code
- Basic automations (e.g., welcome, follow-up)
- High delivery rate (your emails land in the inbox)
- 🌐 mailerlite.com
2. Brevo (formerly Sendinblue) → More powerful
- Free for up to 300 emails/day (no contact limit!)
- Includes CRM, SMS and live chat
- API to integrate with your website
- Perfect if you already have a large database
- 🌐 brevo.com
Both tools protect your domain, improve deliverability and comply with laws like GDPR or data protection regulations.
What if you already use a CMS like WordPress or Drupal?
We can help you integrate these tools directly into your website, so that:
- Your clients can subscribe with a form
- They receive automatic emails
- You manage everything from a clean and secure dashboard
No risks. No blocks. With real results.
In summary:
❌ Don't do this:
- Sending promotions from
info@yourdomain.com - Copying and pasting 300 emails in BCC
- Using your server as if it were for “mass sending”
✅ Do this instead
- Use MailerLite or Brevo
- Create a segmented list
- Let the delivery experts do it for you
Need help migrating?
If you're already using your email for campaigns and want to switch without losing contacts, I can help you set up a secure, fast and tailored solution.
