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Expiry of the licence for the Core Antispam Engine

25Reports, 32Guards, All Topics, News, NoSpamProxy Cloud, NoSpamProxy Disclaimer, NoSpamProxy Encryption, NospamProxy Large Files, NoSpamProxy Protection, Product, Tech & Support, Updates

On March 15, 2025, the licence for the Core Antispam Engine expired for some customers. In some cases, this resulted in temporary rejections of emails.

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17.03.2025/by Stefan Feist
E-Rechnungen Postfach schützen Preview

Attack vector e-invoice: How to protect your mailbox

All Topics, NoSpamProxy Cloud, NoSpamProxy Protection

E-invoicing will be mandatory from January 1, 2025 and many companies already use a dedicated email address to receive e-invoices. Find out why this makes sense and how NoSpamProxy optimally protects your mailbox in this blog article.

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28.02.2025/by Stefan Sturm
NoSpamProxy Update

Shutdown of the DNS blacklist Nixspam

All Topics, Tech & Support

The spam filter project Nixspam is ceasing operations. Since January 16, 2025, the DNS blacklist (DNSBL) no longer contains any entries under the domain name ix.dnsbl.manitu.net.

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19.02.2025/by Stefan Feist
Was ist Ende-zu-Ende-Verschlüsselung Preview

End-to-End Encryption or Gateway-to-Gateway Encryption?

All Topics, NoSpamProxy Cloud, NoSpamProxy Encryption

The protection of personal and business data is becoming increasingly important. Whether private chats or the exchange of sensitive documents, ensuring the confidentiality and integrity of transmitted information is crucial. End-to-end encryption (E2EE) ensures that data is only accessible to the intended recipients and is protected against attacks and manipulation. However, gateway-to-gateway encryption (G2GE) also offers secure protection. Find out exactly what the differences are and which approach makes sense for you in our blog post.

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13.02.2025/by Stefan Sturm
Phishing Mails mit gefälschten Rechnungen Preview

Phishing with fake invoices: Hijacked mail logins are used for new phishing attacks

32Guards, All Topics, NoSpamProxy Cloud, NoSpamProxy Protection, Tech & Support

Cyber criminals are currently using phishing to spread a malware called Strela Stealer via German-language emails. Strela Stealer harvests login data from Outlook and Thunderbird accounts. The criminals then use originally legitimate emails containing invoices, which they forward and send to their victims. These victims then receive what appear at first glance to be identical emails, with only the recipient address and the attachment having been changed. Instead of the invoice, the criminals send .zip files with the same name that contain malware. Our data based on the meta information collected in 32Guards shows the approach of the spammers as well as the distinctive features of phishing emails – and how you can protect your email address from misuse.

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11.02.2025/by Stefan Sturm
DMARC-Policy Warum p=none keine gute Idee ist Preview

DMARC Policy: Why p=none is a bad choice

All Topics, NoSpamProxy Cloud, NoSpamProxy Encryption, NoSpamProxy Protection, Tech & Support

DMARC (Domain-based Message Authentication, Reporting, and Conformance) plays a central role in protecting email domains against misuse. However, the correct configuration of a DMARC policy is crucial: a seemingly harmless setting such as ‘p=none’ can lead to considerable security risks. In this article, we explain why ‘p=none’ is a bad choice and what an effective DMARC record should look like.

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27.01.2025/by Stefan Sturm
secIT-2025 kostenfreie Tickets Preview

secIT 2025 – Get your free tickets now!

All Topics, Events, News

heise medien’s secIT is THE congress trade fair for IT security officers, data centre managers, network administrators and decision-makers in security matters, and we’ll be there!

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23.01.2025/by Stefan Sturm
Höchste Sicherheit für internationale E-Mail-Kommunikation bei Olymp Preview

Maximum security for international email communication at Olymp

All Topics, News, NoSpamProxy Cloud, NoSpamProxy Disclaimer, NoSpamProxy Encryption, NospamProxy Large Files, NoSpamProxy Protection

The menswear manufacturer relies on NoSpamProxy from the cloud for reliable, silent protection against cyber threats. This gives internal IT more freedom for innovation within the company.

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22.01.2025/by Stefan Sturm
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