Dear NoSpamProxy customers,
since a few hours we see in customer environments that send outgoing e-mails from O365 via NoSpamProxy the error “Unable to relay”. We found that Microsoft uses a new certificate to identify all Office 365 email servers, which was issued by a GlobalSign CA rather than Microsoft’s own CA. The NoSpamProxy security check to see if the server is a valid “company e-mail server” fails and the e-mails are rejected. A new Fast Channel Version is available to fix this issue.
We apologize for any inconvenience caused.
Your NoSpamProxy Team
Recommended security update for CVE-2018-8421
/in News, Tech & Support /by Stefan CinkWith the last Microsoft patchday on September 12th, a security update for the .NET framework was released, which closes a critical vulnerability. To exploit the vulnerability, the victim must open a document specially prepared by the attacker. Even if there is no direct danger for NoSpamProxy customers, we recommend installing the update. Further information and the download links can be found here.
NoSpamProxy presents world novelty at it-sa
/in News, Updates /by Stefan SturmThe new NoSpamProxy 12.3 already offers security against EFAIL even for communication partners with a weak infrastructure. Due to the far-reaching support of the new S/MIME 4.0 standard and Authenticated Encryption, many EFAIL-like attack methods are additionally neutralised. Numerous other improvements and new features ensure increased email security and increased resilience against the weaknesses of others. In our press release you can learn more about version 12.3 of NoSpamProxy, which Net at Work will present at the security fair it-sa from October 9 – 11, 2018 in Nuremberg.
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NoSpamProxy Protects HR Departments from Gandcrab Ransomware
/in News, NoSpamProxy Protection /by Stefan SturmRansomware such as Locky, WannaCry and GandCrab has been making headlines lately. Criminals use this type of malware to gain access to individual files or the entire computer. At the same time, they prevent access by the rightful owner by means of encryption. The owner is allowed access only after a ransom has been paid.
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The University of Rostock protects email communication with NoSpamProxy
/in News, NoSpamProxy Protection /by Stefan SturmThe University of Rostock replaces Sophos and Vamsoft with the central email relay NoSpamProxy to ensure secure and uninterrupted email communication for more than 16,500 users. With NoSpamProxy Protection, students and staff avoid spam and malware as completely as technically possible.
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Outgoing e-mails are rejected with “Unable to relay”
/in News, Tech & Support, Updates /by Stefan CinkDear NoSpamProxy customers,
since a few hours we see in customer environments that send outgoing e-mails from O365 via NoSpamProxy the error “Unable to relay”. We found that Microsoft uses a new certificate to identify all Office 365 email servers, which was issued by a GlobalSign CA rather than Microsoft’s own CA. The NoSpamProxy security check to see if the server is a valid “company e-mail server” fails and the e-mails are rejected. A new Fast Channel Version is available to fix this issue.
We apologize for any inconvenience caused.
Your NoSpamProxy Team
How Secure is Email Encryption?
/in News, NoSpamProxy Encryption /by Stefan SturmThe #Efail debate has caused great uncertainty among users and IT departments regarding the effectiveness of email encryption. Headlines such as S/MIME and PGP hacked were not only factually incorrect, but also led some self-proclaimed experts to advise against the use email encryption in general. The fact that the problem is not S/MIME or PGP itself was completely ignored. In reality, encryption is bypassed by getting the email client to send the plain text of the email to the attacker.
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Bundesdruckerei presents NoSpamProxy at CeBIT 2018
/in All Topics, Events, NoSpamProxy Encryption /by Stefan SturmNoSpamProxy is a must at CeBIT 2018. This year CeBIT takes place for the first time in summer, from June 12 to 15 in Hannover. In cooperation with our partner Bundesdruckerei we will use practical examples to show you how easy it is to transmit DSGVO-compliant and encrypted emails containing personal data.
Reputation filters offer extensive security against Efail
/in All Topics, News, NoSpamProxy Encryption /by Stefan SturmGestern sorgte die Nachricht unter dem Hashtag #Efail für Schlagzeilen – Münsteraner Forscher veröffentlichten Exploits für S/MIME- und PGP-verschlüsselte E-Mails. Das NoSpamProxy-Team hat diese im Hinblick auf Relevanz für NoSpamProxy-Kunden geprüft und dazu heute eine Pressemeldung veröffentlicht.
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