An email server that's secure, powerful, and reliable

  • Highest security standards
  • Automatic encryption with SSL/TLS
  • ISO-27001 certified and geo-redundant data centers
See email plans
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Rely on the experts with an IONOS mail server

With more than 8 million customer contracts, IONOS is a leading provider of hosting services and cloud infrastructure. That means when you choose a mail server from IONOS, you're choosing secure and powerful email infrastructure that's been designed by experts. You can access your emails using IMAP and SMTP access that’s quick and easy from anywhere and with any device — an internet connection is all you need. There are also lots of features to make your daily grind a little bit easier.

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Stay secure with an IONOS mail server

Digital security is more important than you might imagine. Think how expensive it could be if client data or personal information fell into the hands of third parties. An email server from IONOS can help you protect this data. With the help of firewalls and filters, your emails are secure against unwanted access and ransomware attacks. You can also count on high data protection standards. You'll also get automatic daily backups. These copies of your correspondence keep your emails safe even in the event of a natural disaster. The data centers at IONOS storing your emails are ISO/IEC 27001:2013 certified and georedundant. In other words, if one data center fails, another one takes its place immediately, and your data stays safe!

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Advantages of mail hosting on IONOS mail servers


Your own domain for more credibility

All email plans from IONOS include your own email domain at no extra charge. Use it with your own company name for a more credible impression. You can even use it to build your brand.


Ample storage space for multiple mailboxes

With up to 10 mailboxes 50 GB of storage, you'll have a lot of space for emails, images and attachments.


Protection against viruses and spam

If you host on an IONOS email server, you'll get advanced filters and anti-virus protection to keep spam and malware where they belong — out of your email!

IONOS email plans at a glance

Host your business email with the experts.


25 email accounts, each with 2 GB. Expand anytime.

Free domain

Ad-free email

Spam filter


Synchronized on all devices

24/7 expert support


50 GB email account for each user

Free domain

Ad-free email

Premium virus protection and spam filter


Sync data across mobile devices in real-time

24/7 expert support

Team collaboration tools

Federal and provincial sales taxes may apply. See General Terms and Conditions.

Learn more about your own email server

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