![](https://www.zertificon.com/images/totemo-sophos-zertificon-as-alternative-scaled.jpg)
Alternative to totemomail and Sophos UTM: Seamless migration to Z1 SecureMail Gateway
Time to read:
4 min
Looking for an alternative to Sophos UTM or totemomail? Consider switching to Z1 SecureMail Gateway for enhanced email security made in Germany. Read more
![](https://www.zertificon.com/images/MaKo_header_zuschnitt_switch.png)
AS4 switch in Market Communication: BRPs face unique challenges in future schedule management
Time to read:
2 min
Switching to AS4 for schedules independently of Market Communication: Key considerations for Balance Responsible Parties (BRPs). Read more
![](https://www.zertificon.com/images/Mako-2023-AS4.png)
Market Communication 2023: Do you need a Cryptographic Module or HSM as a passive external market participant (EMT)?
Time to read:
4 min
Cryptographic Module or HSM? How to manage private keys for SmartMetering PKI in Germany as passive external market participant (Mako 2023) Read more
![](https://www.zertificon.com/images/key-certificates-email-encryption.png)
What are email key pairs and certificates, and how are they used?
Time to read:
3 min
Whether for email signing or encryption, they come in pairs: private and public. How can your business/organization manage them without issues? Read more
![](https://www.zertificon.com/images/digitale-Signaturen.png)
Why digital email signatures and encryption go hand in hand
Time to read:
3 min
Digital signatures are a powerful sender authentication tool, but without encryption/decryption abilities, you're in for a headache. Learn why. Read more
![](https://www.zertificon.com/images/m365-usability-verbessern-und-ecb-exploits-verhindern.png)
Zertificon’s Z1 SecureMail Gateway enhances Microsoft 365 for confidential email exchange and ECB exploits prevention
Time to read:
2 min
Z1 SecureMail Gateway enhances the M365 infrastructure with email encryption according to the S/MIME and OpenPGP standards as well as password-based [...] Read more
![](https://www.zertificon.com/images/sichere-email-im-gesundheitswesen-e-rezept.png)
Send electronic prescriptions to patients via email in compliance with GDPR
Time to read:
2 min
TLS is unfit for patient communication outside healthcare networks—due to data protection. Read why content encryption is appropriate. Read more
![](https://www.zertificon.com/images/zertificon-smime-domain-zertifikat.png)
When can I use domain certificates for email encryption?
Time to read:
4 min
Domain certificates are certificates issued to legal entities. Are these certificates useful and what should be considered? Read more
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