Receive and send emails securely.

We go further than others: zertmail. not only checks incoming emails, but also protects outgoing emails and attachments from unauthorized access.
Comprehensive protection for your email communication.

@
or use company domain.
zertmail.com

Do you own the following domain:

or

Do you want a Microsoft Exchange Online mail server?

or
Works with:

Outlook

Apple Mail

Thunderbird

all common email clients

zertmail. x ÖFB

All-in-one email security for Austrian football

Regular Email Communication

Sent via your email program (Outlook, Apple Mail, Thunderbird, etc.)

Incoming emails often contain spam, phishing or viruses.  

Protection against targeted or advanced attacks is lacking. 

Emails, like a postcard, can be read on the way from sender to recipient.
Emails can be manipulated and altered by third parties.
Confidential, personal data must not be sent (data protection)
Legal requirements are not met (NIS‑2, GTelG, GDPR, etc.)

E-Mail Communication with zertmail. 

Sent via your email program (Outlook, Apple Mail, Thunderbird, etc.)

Incoming emails are checked, for spam, phishing and viruses.

Advanced filters provide additional protection against sophisticated attacks.

Emails cannot, like a postcard, be read on the way from sender to recipient.
Emails cannot be manipulated or altered by third parties.
Confidential, personal data may be sent.
Legal requirements are met (NIS-2, GTelG, GDPR, etc.)
Secure email reception

Protection against spam, viruses, and phishing

Anti-Virus & Anti-Spam Filter

With zertmail., incoming emails are automatically checked for viruses, spam, and other malware. This ensures that only clean and trustworthy messages reach your inbox and that potential threats are blocked at an early stage.

Analysis of suspicious links & phishing attempts

With zertmail., all links and content in emails are analyzed to reliably detect phishing attempts and fraudulent redirects. This protects your company from data misuse and targeted deception attacks.

Advanced filters against sophisticated attacks

zertmail. uses state-of-the-art filter technology that detects even complex and targeted attacks (advanced threats). This provides your mailboxes with additional protection against new types of threats that traditional filters often cannot detect.

secure email delivery

Encryption & signature for emails & attachments

Tamper-proof emails & attachments

With zertmail., all your emails are automatically digitally signed with S/MIME certificates. This prevents third parties from manipulating content and attachments. The recipient can be sure that the message actually came from you and remained unchanged during transmission.

No unauthorized access possible

If you want to send an email containing personal data or sensitive information that should not be viewed by anyone else, you can send it encrypted with just a few clicks. This ensures that the recipient is the only one who can access the content and attachments of the email.

GDPR, NIS-2 & GTelG-compliant

The digital transmission of personal data (such as health data, job applications, etc.) is only allowed to be sent encrypted according to the General Data Protection Regulation (GDPR). With email encryption from zertmail., you meet these requirements and ensure that your emails cannot be accessed by third parties.
Email security without additional effort

Easy integration into your existing email program

All common email clients

zertmail. enables smooth and secure email delivery in all common mail clients, such as Microsoft Outlook, Apple Mail, or Thunderbird. Setup is the same as for a regular email—you only need your email address, password, and server information.

All common devices

zertmail. ensures that all your emails are sent securely—no matter which browser or device you use. Seamless integration means you can continue to send emails in the same way you always have and don’t have to get used to a new system.

Encryption with just one click

The zertmail. Outlook plugin allows you to encrypt confidential information and attachments with just one click before sending the email. This makes sending sensitive information easy for you and inaccessible to third parties.

Simple & fast through your usual email client

This is how email encryption works with zertmail.

Find the right zertmail. package for your needs

Secure email delivery at a fixed price

Comprehensive protection
for your email communication

Pure

name@existing-domain.at | Setup with your IT company

With zertmail.business, you can secure your existing mailboxes (MS365 Exchange or other providers) for both incoming and outgoing mail.

Thanks to encryption, digital signatures (S/MIME), antivirus, and antispam filters, your emails are protected in both directions and comply with all relevant legal requirements such as NIS-2, GTelG, and GDPR.

  • Protection for incoming & outgoing emails
  • Antivirus, antispam, and phishing filters
  • Digital signature & encryption with S/MIME certificates
  • Easy to use in your existing email program
  • 100% European cloud
  • Available from just 1 mailbox
4.95€ per month for the first mailbox
plus a basic fee of €20 per month No setup costs. Prices exclude VAT.
Find the right zertmail. package for your needs

Secure email sending at a fixed price, including Microsoft Exchange Online.

Mailbox Microsoft
Exchange Online
Comprehensive protection
for your email communication
@zertmail.com
Email with a zertmail.com-Domain

Basic

name@zertmail.com

With zertmail.basic, you get a secure mailbox under the @zertmail.com domain, including Microsoft 365 Exchange Online.

Thanks to encryption, digital signatures (S/MIME), antivirus and antispam filters, and comply with all relevant legal requirements such as NIS-2, GTelG, and GDPR.

  • Secure mailbox under @zertmail.com
  • Antivirus, antispam, and phishing filters
  • Digital signature & encryption with S/MIME certificates
  • Includes Microsoft 365 Exchange Online
  • 100% European cloud
17.95€ per month per mailbox
17.95€ per month for each additional mailbox
No setup costs
Prices exclude VAT
Secure E-Mail Delivery

Simple & fast with all email programs

Outlook

Apple Mail

Thunderbird

Webmail

Automatically sign, optionally encrypt

With zertmail., your outgoing emails are automatically tamper-proof (signed)—when composing and sending your emails, nothing changes for you!

If you want to send an email protected from unauthorized access (encrypted), you can easily do so using a keyword in the subject line or with a single click via the free zertmail. Outlook add-in.

Automatically sign, optionally encrypt

With zertmail., all emails you send are automatically tamper-proof (signed)—so when composing and sending your emails through Apple Mail, nothing changes for you!

If you want to send an email protected from unauthorized access (encrypted), you can easily do so by using the keyword [confidential] in the subject line.

Automatically sign, optionally encrypt

With zertmail., all emails you send are automatically tamper-proof (signed)—so when composing and sending your emails through Thunderbird, nothing changes for you!

If you want to send an email protected from unauthorized access (encrypted), you can easily do so by using the keyword [confidential] in the subject line.

Automatically sign, optionally encrypt

With zertmail., all emails you send are automatically tamper-proof (signed)—so when composing and sending your emails via Webmail, nothing changes for you!

If you want to send an email protected from unauthorized access (encrypted), you can easily do so by using the keyword [confidential] in the subject line.

“Without zertmail., your emails are unprotected—both when receiving and sending.”

Email security made in Austria

The vision of a protected digital world

“Without zertmail. your email is like a postcard that anyone can read and manipulate.”

zertmail. sets new standards in the secure transmission of confidential information and files by e-mail. The 13-member team behind zertmail. stands for transparency, security, and quality.

 

Founded in 2022 by IT expert Robert Sonnleitner, who has been active in the IT security industry for over 20 years, and Valentin Koch, CEO and founder of a successful Linz-based digital agency, zertmail. pursues the goal of making secure e-mail communication as simple as possible and accessible to everyone.

Who is already using zertmail.?

One solution for all industries

Medicine

Law

Insurance

Laboratories

Tax consulting

Medical records, findings, patient data.

According to Article 32 of the General Data Protection Regulation, medical professionals are obliged to protect their patients’ personal data. With zertmail. you can send findings, medical records, or other documents in compliance with the GDPR quickly and easily using your usual email program. We ensure that emails to your patients or colleagues cannot be manipulated or read by third parties.

Contracts, notarial deeds, expert opinions

According to Article 32 of the General Data Protection Regulation, legal professionals are obliged to protect their clients’ personal and confidential data. With zertmail. you can send contracts, rulings, or other documents in compliance with the GDPR quickly and easily using your usual email program. We ensure that emails to your clients or colleagues cannot be manipulated or read by third parties.

Policies, insurance applications, claim notifications

Insurance brokers & caseworkers are obliged under Article 32 of the General Data Protection Regulation to protect their clients’ personal and confidential data. With zertmail. you can send policies, client data, or other documents in compliance with the GDPR quickly and easily using your usual email program. We ensure that emails to your clients or colleagues cannot be manipulated or read by third parties.

Findings, patient data, protocols

Laboratory staff are obliged under Article 32 of the General Data Protection Regulation to protect their patients’ personal and confidential data. With zertmail. you can send patient findings, test results, or other documents in compliance with the GDPR quickly and easily using your usual email program. We ensure that emails to your patients or colleagues cannot be manipulated or read by third parties.

Tax returns, bank statements, financial documents

Tax advisors are obliged under Article 32 of the General Data Protection Regulation to protect their clients’ personal and confidential data. With zertmail. you can send tax returns, financial documents, official documents, or other files securely, quickly, and easily using your usual email program. We ensure that emails to your clients or colleagues cannot be manipulated or read by third parties.