Altospam, your partner for Microsoft 365 email security

Microsoft 365 is the main target platform for phishing attacks

Microsoft 365 is the most widely used suite in the world. The ever-increasing adoption of Microsoft 365 by organizations makes it a prime target for hackers. With nearly 300 million M365 users, hackers continue to develop new techniques to target this ever-growing number of users. M365 therefore represents an opportunity for hackers to gain access to a wealth of data. While Microsoft’s native email security is capable of intercepting standard threats, it is powerless against the dynamic and sophisticated attacks now targeting Microsoft 365.

By 2020, 85% of Microsoft customers have experienced a breach of their email. To improve your security against unknown and constantly evolving threats, we recommend that you complement your existing Microsoft 365 security mechanisms. Reinforce your Microsoft 365 email security with an additional layer against sophisticated attacks: anti-phishing, anti-spear phishing (against Business Email Compromise (BEC)), identity theft, anti-ransomware protection to effectively protect your business and your users.

Antispam Anti-phishing Compatible avec M365

Why is it necessary to reinforce Microsoft 365’s native antispam with Altospam?

Compatible Microsoft 365

Attacks on Microsoft are lucrative. Choose productivity AND security. To enjoy the benefits of Microsoft without increasing the risk of cyber attacks, it’s essential to complement and strengthen M365 with our cloud-based solutions. This not only increases protection at the email level, but also ensures business continuity and data protection in the event of a service interruption, thanks to our DRP service.

Microsoft 365’s native email security is capable of intercepting standard threats, it is powerless against dynamic attacks. Sophisticated email attacks, such as phishing, ransomware and zero-day attacks, can easily bypass Microsoft’s security defenses. Altospam’s Mailsafe uses AI algorithms to meticulously analyze the content and context of emails. Our solution is capable of blocking the most dynamic and sophisticated ransomware, phishing and spear phishing attacks, as well as non-priority advertising mail (including anti-advertising otpion).

Protect your employees and your M365 work environment.

Even with Microsoft Defender in place, hackers can bypass native anti-spam and operate inside an e-mail network, using compromised accounts or social engineering to send malicious e-mails internally or externally. Your employees are also likely to open attachments, click on links… With Mailout, we prevent the propagation of attacks internally or towards a customer or partner.

Our recovery plan

Breakdowns are inevitable. Outages and disruptions to messaging services do happen, even with Microsoft 365. Altospam’s messaging continuity services help you protect your productivity, without ever sacrificing security.

These solutions, optimized to take account of existing technical conditions, are designed to enable our customers to continue working normally with e-mail in the event of a disaster, or, if necessary, to limit damage following an incident: server crash, datacenter unavailability, natural disaster.

Mailsafe also protects your M365 mailbox from sophisticated attacks

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Our machine learning algorithms perform behavioral, contextual and visual analyses of emails and urls to identify phishing attacks.

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Our algorithms and heuristic analyses examine both behavior and code to detect malware and ransomware lurking in emails, attachments and hosted files.

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Anti- Spear-phishing

Our anomaly detection and semantic analysis algorithms detect spoofing attempts and malicious patterns in phishing emails.

Anti-malware | Anti-virus

Our solution integrates 6 antivirus tools to complement anti-spam filters, as well as 4 innovative technologies to detect unknown viruses.

Analyze your M365 email security for free.

Discover the threats lurking in your M365 email in real time

They chose Altospam to strengthen M365 security

Inbound and outbound filtering

A complete solution for filtering incoming and outgoing mail. Our 2 Mailsafe and Mailout solutions are compatible with M365

Reduced costs & maintenance time

Simple to use and administer. Managing email security with Microsoft products is complex. With the multitude of attacks deployed by hackers, this activity mobilizes considerable IT time and resources. Altospam’s Mailsafe offers rapid deployment and low costs, with 鈧0 infrastructure and maintenance costs.

Instant commissioning. Immediate results.

Easy to install (MX change), use and administer. Altospam’s Mailsafe offers rapid deployment, an intuitive management interface and few human resources. Results are immediate

Management interface: Detailed statistics and real-time reports

Administrator & user interface. Administration console for viewing all the steps taken by emails. It is divided into several modules (statistics, logs, etc.)

24/7 French support

Experts at your service, 24/7. Our solutions, teams, support and servers are located in France, so are not subject to the Patriot Act.

Why choose Mailsafe to protect your M365 mailbox?


"What I appreciate most about using Altospam solutions with Office 365 is the protection against attacks and their DRP(Disaster Recovery Plan) service in the event of disruptions to Office 365."

Your most frequently asked questions about email security with M365

  • Why is Microsoft 365 the platform most attacked by hackers?

    Microsoft 365 est l’une des plateformes les plus attaqu茅es par les hackers en raison de sa popularit茅 et de son utilisation r茅pandue dans les entreprises. Avec plus de 300 millions d’utilisateurs actifs mensuels, Microsoft 365 repr茅sente une cible attrayante pour les cybercriminels cherchant 脿 acc茅der 脿 des informations confidentielles, 脿 des identifiants de connexion ou 脿 des informations financi猫res. De plus, Microsoft 365 est une plateforme tr猫s complexe avec de nombreux services interconnect茅s, ce qui rend la s茅curisation de l’ensemble du syst猫me particuli猫rement difficile et n茅cessite des comp茅tences et une expertise en s茅curit茅 informatique. En outre, certaines entreprises peuvent ne pas avoir pris toutes les mesures de s茅curit茅 n茅cessaires pour prot茅ger correctement leur environnement Microsoft 365, ce qui les rend encore plus vuln茅rables aux attaques.

  • How to avoid phishing attacks on Microsoft Office 365?

    Voici quelques mesures pour 茅viter les attaques de phishing sur Microsoft 365 :

    • Sensibiliser les employ茅s : Les utilisateurs doivent 锚tre form茅s 脿 identifier les signes d’un email de phishing. Ils doivent 锚tre encourag茅s 脿 ne jamais cliquer sur les liens ou les pi猫ces jointes suspects, m锚me s’ils semblent provenir d’une source fiable.
    • Utiliser une solution de s茅curit茅 compl猫te : les entreprises doivent envisager de mettre en place une solution de s茅curit茅 compl猫te pour M365, telle que Mailsafe d鈥橝ltospam, qui peut bloquer les emails de phishing avant qu’ils n’atteignent les bo卯tes de r茅ception des utilisateurs.
    • Activer l’authentification 脿 deux facteurs (2FA) : L’activation de l’authentification 脿 deux facteurs peut aider 脿 emp锚cher les attaques de phishing, car les utilisateurs doivent fournir une deuxi猫me forme d’identification, comme un code de s茅curit茅, avant de pouvoir acc茅der 脿 leur compte.
    • Mettre 脿 jour r茅guli猫rement les logiciels : Les entreprises doivent s’assurer que tous les logiciels et applications utilis茅s sur leurs ordinateurs sont 脿 jour, car les hackers exploitent souvent les vuln茅rabilit茅s des logiciels obsol猫tes pour mener leurs attaques.
  • Why install an extra layer of email protection with Microsoft 365?

    Installer une protection suppl茅mentaire de la messagerie avec Microsoft 365 est important pour renforcer la s茅curit茅 des emails 茅chang茅s au sein de l’entreprise. Les menaces de phishing, de malware, de ransomware, de spam sont de plus en plus sophistiqu茅es. Il est devenu difficile pour les protections de base de Microsoft 365 de les bloquer.

    Les solutions de protection de la messagerie comme Mailsafe fournissent des couches de s茅curit茅 suppl茅mentaires pour filtrer les emails malveillants, d茅tecter les menaces avanc茅es et pr茅venir les violations de donn茅es. Cela permet de prot茅ger les donn茅es sensibles de l’entreprise et d’茅viter les pertes financi猫res et pr茅server la r茅putation de l’entreprise.

    Enfin, les syst猫mes de d茅tection et d’analyse de Microsoft 365 se concentrent sur les menaces en langue anglaise, notamment au niveau de la lutte antispam. La solution Mailsafe d’Altospam est plus compl猫te et performante sur le contenu en langue fran莽aise.

Are you ready? Test our 100% M365-compatible solutions!

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D茅mo anti phishing anti ransomware antispam

Our email protection solutions help you prevent threats from phishing, ransomware, spear phishing, malware, spam and viruses. Book a time with a cyber expert for a personalized demonstration.

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