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Email security (IPv6 activation)
Dear Customers
We would like to inform you that we activated IPv6 on our mail servers last year. To ensure smooth email delivery and protection against spam, it is necessary that you have the following SPF record in your DNS configuration.
Value: "v=spf1 include:spf.netzone.ch -all"
This record ensures that outgoing emails from our infrastructure are also authorized by our IPv6 range and prevent delivery problems or being marked as spam.
We wish you a happy and successful 2026.
Team NetZone AGeit (IPv6 Activation)
Secure email sending – only with registered senders
Dear Customers
For security and deliverability reasons, sending emails via websites will in future only be possible with sender addresses configured in your hosting package.
This means:
When sending emails via your web forms, a sender address must be stored that also exists under this hosting package.
If you still want to use an external email address (e.g., @gmail.com, @bluewin.ch, @outlook.com), this is only possible with SMTP authentication via the respective provider's mail server.
Thank you for your understanding.
Best regards,
Team NetZone AG
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