#exchangeonline — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #exchangeonline, aggregated by home.social.
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A Microsoft 365 RejectDirectSend bypass lets attackers spoof internal emails. Learn how this RejectDirectSend bypass works and how to protect your tenant.
#Microsoft365 #Phishing #EmailSecurity #ExchangeOnline #Cybersecurity
https://securityonline.info/rejectdirectsend-bypass/?utm_source=mastodon&utm_medium=jetpack_social
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A Microsoft 365 RejectDirectSend bypass lets attackers spoof internal emails. Learn how this RejectDirectSend bypass works and how to protect your tenant.
#Microsoft365 #Phishing #EmailSecurity #ExchangeOnline #Cybersecurity
https://securityonline.info/rejectdirectsend-bypass/?utm_source=mastodon&utm_medium=jetpack_social
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A Microsoft 365 RejectDirectSend bypass lets attackers spoof internal emails. Learn how this RejectDirectSend bypass works and how to protect your tenant.
#Microsoft365 #Phishing #EmailSecurity #ExchangeOnline #Cybersecurity
https://securityonline.info/rejectdirectsend-bypass/?utm_source=mastodon&utm_medium=jetpack_social
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Hat noch jemand ungepatchte #Exchange 2016 / 2019 Instanzen im Einsatz, die über einen Connector an #ExchangeOnline angebunden sind? Bald können dann keine E-Mails mehr an EO übermittelt werden.
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Hat noch jemand ungepatchte #Exchange 2016 / 2019 Instanzen im Einsatz, die über einen Connector an #ExchangeOnline angebunden sind? Bald können dann keine E-Mails mehr an EO übermittelt werden.
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Hat noch jemand ungepatchte #Exchange 2016 / 2019 Instanzen im Einsatz, die über einen Connector an #ExchangeOnline angebunden sind? Bald können dann keine E-Mails mehr an EO übermittelt werden.
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Hat noch jemand ungepatchte #Exchange 2016 / 2019 Instanzen im Einsatz, die über einen Connector an #ExchangeOnline angebunden sind? Bald können dann keine E-Mails mehr an EO übermittelt werden.
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Exchange Online blocking of outdated Exchange 2016 and 2019 servers begins in September 2026, requiring the October 2025 update baseline.
#Exchange #ExchangeOnline #Microsoft365 #EmailSecurity #ExchangeServer #HybridMail #ESU
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Exchange Online blocking of outdated Exchange 2016 and 2019 servers begins in September 2026, requiring the October 2025 update baseline.
#Exchange #ExchangeOnline #Microsoft365 #EmailSecurity #ExchangeServer #HybridMail #ESU
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Exchange Online blocking of outdated Exchange 2016 and 2019 servers begins in September 2026, requiring the October 2025 update baseline.
#Exchange #ExchangeOnline #Microsoft365 #EmailSecurity #ExchangeServer #HybridMail #ESU
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Ein weiterer Schritt in Richtung #DigitalSovereignty : #Outlook wird dann irgendwann nicht mehr zwingend notwendig sein
#Thunderbird stellt #ExchangeOnline auf #MicrosoftGraph um | iX Magazin https://www.heise.de/news/Thunderbird-stellt-Exchange-Online-auf-Microsoft-Graph-um-11439383.html #M365 #Microsoft365 #MS365 #MozillaThunderbird #OpenSource #MicrosoftOutlook
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Ein weiterer Schritt in Richtung #DigitalSovereignty : #Outlook wird dann irgendwann nicht mehr zwingend notwendig sein
#Thunderbird stellt #ExchangeOnline auf #MicrosoftGraph um | iX Magazin https://www.heise.de/news/Thunderbird-stellt-Exchange-Online-auf-Microsoft-Graph-um-11439383.html #M365 #Microsoft365 #MS365 #MozillaThunderbird #OpenSource #MicrosoftOutlook
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Ein weiterer Schritt in Richtung #DigitalSovereignty : #Outlook wird dann irgendwann nicht mehr zwingend notwendig sein
#Thunderbird stellt #ExchangeOnline auf #MicrosoftGraph um | iX Magazin https://www.heise.de/news/Thunderbird-stellt-Exchange-Online-auf-Microsoft-Graph-um-11439383.html #M365 #Microsoft365 #MS365 #MozillaThunderbird #OpenSource #MicrosoftOutlook
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Microsoft is investigating separate Microsoft Teams issues affecting some users.
On Windows, the app may fail to open or take up to two minutes to load.
On Mac, some users cannot join calls or meetings.
Microsoft has not confirmed the cause or a final fix; its earlier link to a code change is being reconsidered.
A separate Exchange Online issue is delaying messages sent to and received from external recipients.
A tempo…
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Microsoft is investigating separate Microsoft Teams issues affecting some users.
On Windows, the app may fail to open or take up to two minutes to load.
On Mac, some users cannot join calls or meetings.
Microsoft has not confirmed the cause or a final fix; its earlier link to a code change is being reconsidered.
A separate Exchange Online issue is delaying messages sent to and received from external recipients.
A tempo…
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Microsoft is investigating separate Microsoft Teams issues affecting some users.
On Windows, the app may fail to open or take up to two minutes to load.
On Mac, some users cannot join calls or meetings.
Microsoft has not confirmed the cause or a final fix; its earlier link to a code change is being reconsidered.
A separate Exchange Online issue is delaying messages sent to and received from external recipients.
A tempo…
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https://www.europesays.com/si/211392/ Outlook odpovedal: Milijoni uporabnikov nenadoma brez e-pošte #DownDetector #ExchangeOnline #GlobalniIzpad #IzpadStoritev #Microsoft #Microsoft365 #OblačnaInfrastruktura #Outlook #SI #Slovene #Slovenia #Slovenija #Slovenščina #Technology #TehničneTežave #Tehnologija #TežaveZEPošto
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https://www.europesays.com/videos/85757/ AUSFALL MICROSOFT: Millionen können keine E-Mails empfangen – Was Outlook-Nutzer jetzt wissen müssen #2026 #aktuell #authentifizierung #cloud #CloudInfrastruktur #EMail #EMails #ExchangeOnline #fernsehen #it #MailServer #microsoft #MicrosoftOutlook #MicrosoftTeams #n24 #nachrichten #NachrichtenAktuell #news #nutzer #onedrive #OnedriveForBusiness #outlook #sharepoint #SharepointOnline #Software #störung #teams #tv #user #video #welt #WELTNews
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Microsoft is gradually doubling the primary mailbox limit from 50 GB to 100 GB for Microsoft 365 Business Basic, Business Standard and Business Premium users.
The rollout began in June 2026 and is expected to finish by September.
The change does not add an archive mailbox, and manually configured lower quotas will remain in place.
#Cybersecurity #ExchangeOnline #Microsoft365 #MailboxStorage #MicrosoftGraph
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#Microsoft working to fix #ExchangeOnline mailbox quarantine issue
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#Microsoft working to fix #ExchangeOnline mailbox quarantine issue
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#Microsoft working to fix #ExchangeOnline mailbox quarantine issue
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#Microsoft working to fix #ExchangeOnline mailbox quarantine issue
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Ein Fehler bei #ExchangeOnline verschiebt harmlose E-Mails fälschlich in die Quarantäne und blockiert Kalender. #Microsoft arbeitet an einer Bereinigung der Server. https://winfuture.de/news,160199.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia
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Ein Fehler bei #ExchangeOnline verschiebt harmlose E-Mails fälschlich in die Quarantäne und blockiert Kalender. #Microsoft arbeitet an einer Bereinigung der Server. https://winfuture.de/news,160199.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia
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Ein Fehler bei #ExchangeOnline verschiebt harmlose E-Mails fälschlich in die Quarantäne und blockiert Kalender. #Microsoft arbeitet an einer Bereinigung der Server. https://winfuture.de/news,160199.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia
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Ein Fehler bei #ExchangeOnline verschiebt harmlose E-Mails fälschlich in die Quarantäne und blockiert Kalender. #Microsoft arbeitet an einer Bereinigung der Server. https://winfuture.de/news,160199.html?utm_source=Mastodon&utm_medium=ManualStatus&utm_campaign=SocialMedia
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CVE-2026-56191: CRITICAL improper authentication in Microsoft Exchange Online (CVSS 10). Remote, unauthenticated attackers can tamper with systems. Official fix available — patch ASAP. Details: https://radar.offseq.com/threat/cve-2026-56191-cwe-287-improper-authentication-in-microsoft-microsoft-exchange-online-2fb5560625ca8222 #OffSeq #CVE202656191 #ExchangeOnline #Vuln
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CVE-2026-56191: CRITICAL improper authentication in Microsoft Exchange Online (CVSS 10). Remote, unauthenticated attackers can tamper with systems. Official fix available — patch ASAP. Details: https://radar.offseq.com/threat/cve-2026-56191-cwe-287-improper-authentication-in-microsoft-microsoft-exchange-online-2fb5560625ca8222 #OffSeq #CVE202656191 #ExchangeOnline #Vuln
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CVE-2026-56191: CRITICAL improper authentication in Microsoft Exchange Online (CVSS 10). Remote, unauthenticated attackers can tamper with systems. Official fix available — patch ASAP. Details: https://radar.offseq.com/threat/cve-2026-56191-cwe-287-improper-authentication-in-microsoft-microsoft-exchange-online-2fb5560625ca8222 #OffSeq #CVE202656191 #ExchangeOnline #Vuln
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CVE-2026-56191: CRITICAL improper authentication in Microsoft Exchange Online (CVSS 10). Remote, unauthenticated attackers can tamper with systems. Official fix available — patch ASAP. Details: https://radar.offseq.com/threat/cve-2026-56191-cwe-287-improper-authentication-in-microsoft-microsoft-exchange-online-2fb5560625ca8222 #OffSeq #CVE202656191 #ExchangeOnline #Vuln
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Microsoft has delayed Exchange Online PowerShell's credential cutoff to December, while scripts using stored passwords could break after module updates.
#ExchangeOnline #PowerShell #Microsoft #Authentication #MultiFactorAuthentication #Microsoft365 #MicrosoftExchange
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Microsoft has delayed Exchange Online PowerShell's credential cutoff to December, while scripts using stored passwords could break after module updates.
#ExchangeOnline #PowerShell #Microsoft #Authentication #MultiFactorAuthentication #Microsoft365 #MicrosoftExchange
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Microsoft has delayed Exchange Online PowerShell's credential cutoff to December, while scripts using stored passwords could break after module updates.
#ExchangeOnline #PowerShell #Microsoft #Authentication #MultiFactorAuthentication #Microsoft365 #MicrosoftExchange
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Microsoft has delayed Exchange Online PowerShell's credential cutoff to December, while scripts using stored passwords could break after module updates.
#ExchangeOnline #PowerShell #Microsoft #Authentication #MultiFactorAuthentication #Microsoft365 #MicrosoftExchange
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Microsoft 365 : vos boîtes restent bloquées à 50 Go ? Voici comment passer à 100 Go https://www.it-connect.fr/microsoft-365-business-boites-100-go-quota-bloque/ #ExchangeOnline #Microsoft365 #Entreprise #Microsoft
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Microsoft 365 : vos boîtes restent bloquées à 50 Go ? Voici comment passer à 100 Go https://www.it-connect.fr/microsoft-365-business-boites-100-go-quota-bloque/ #ExchangeOnline #Microsoft365 #Entreprise #Microsoft
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Microsoft 365 : vos boîtes restent bloquées à 50 Go ? Voici comment passer à 100 Go https://www.it-connect.fr/microsoft-365-business-boites-100-go-quota-bloque/ #ExchangeOnline #Microsoft365 #Entreprise #Microsoft
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Microsoft 365 : vos boîtes restent bloquées à 50 Go ? Voici comment passer à 100 Go https://www.it-connect.fr/microsoft-365-business-boites-100-go-quota-bloque/ #ExchangeOnline #Microsoft365 #Entreprise #Microsoft
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E-Mail-Fälschung bei #ExchangeOnline: Ghost-Sender betrifft viele Unternehmen | Security https://www.heise.de/news/Ghost-Sender-Exchange-Online-laesst-gefaelschte-E-Mails-anstandslos-durch-11327666.html #CyberCrime
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E-Mail-Fälschung bei #ExchangeOnline: Ghost-Sender betrifft viele Unternehmen | Security https://www.heise.de/news/Ghost-Sender-Exchange-Online-laesst-gefaelschte-E-Mails-anstandslos-durch-11327666.html #CyberCrime
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E-Mail-Fälschung bei #ExchangeOnline: Ghost-Sender betrifft viele Unternehmen | Security https://www.heise.de/news/Ghost-Sender-Exchange-Online-laesst-gefaelschte-E-Mails-anstandslos-durch-11327666.html #CyberCrime
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E-Mail-Fälschung bei #ExchangeOnline: Ghost-Sender betrifft viele Unternehmen | Security https://www.heise.de/news/Ghost-Sender-Exchange-Online-laesst-gefaelschte-E-Mails-anstandslos-durch-11327666.html #CyberCrime
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https://winbuzzer.com/2026/05/21/microsoft-alert-emails-abused-to-deliver-scam-links-xcxwbn/
Scammers are abusing Microsoft's trusted account-notification email channel to send spam or phishing links that can look like legitimate Microsoft alerts.
#MicrosoftAccount #Microsoft #Cybersecurity #Cybercrime #PhishingAttacks #MicrosoftSecurity #ExchangeOnline
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https://winbuzzer.com/2026/05/21/microsoft-alert-emails-abused-to-deliver-scam-links-xcxwbn/
Scammers are abusing Microsoft's trusted account-notification email channel to send spam or phishing links that can look like legitimate Microsoft alerts.
#MicrosoftAccount #Microsoft #Cybersecurity #Cybercrime #PhishingAttacks #MicrosoftSecurity #ExchangeOnline
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https://winbuzzer.com/2026/05/21/microsoft-alert-emails-abused-to-deliver-scam-links-xcxwbn/
Scammers are abusing Microsoft's trusted account-notification email channel to send spam or phishing links that can look like legitimate Microsoft alerts.
#MicrosoftAccount #Microsoft #Cybersecurity #Cybercrime #PhishingAttacks #MicrosoftSecurity #ExchangeOnline
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https://winbuzzer.com/2026/05/21/microsoft-alert-emails-abused-to-deliver-scam-links-xcxwbn/
Scammers are abusing Microsoft's trusted account-notification email channel to send spam or phishing links that can look like legitimate Microsoft alerts.
#MicrosoftAccount #Microsoft #Cybersecurity #Cybercrime #PhishingAttacks #MicrosoftSecurity #ExchangeOnline
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Microsoft to Block Legacy TLS on Exchange Online in July 2026
#ExchangeOnline #MicrosoftExchange #Microsoft #Microsoft365 #Cybersecurity
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Microsoft to Block Legacy TLS on Exchange Online in July 2026
#ExchangeOnline #MicrosoftExchange #Microsoft #Microsoft365 #Cybersecurity
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Microsoft to Block Legacy TLS on Exchange Online in July 2026
#ExchangeOnline #MicrosoftExchange #Microsoft #Microsoft365 #Cybersecurity
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Microsoft to Block Legacy TLS on Exchange Online in July 2026
#ExchangeOnline #MicrosoftExchange #Microsoft #Microsoft365 #Cybersecurity
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Microsoft to Discontinue Legacy TLS Versions in Exchange Online by July 2026
Microsoft is putting the brakes on outdated security protocols, announcing that it'll start blocking legacy TLS 1.0 and 1.1 connections to Exchange Online in July 2026 - so it's time to upgrade and stay secure! This move marks the end of an era for older clients that still rely on these outdated protocols.
#ExchangeOnline #TransportLayerSecurity #Tls10 #Tls11 #Microsoft
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Microsoft to require TLS 1.2 or later starting July 2026 when connecting to Exchange Online
https://www.bleepingcomputer.com/news/microsoft/microsoft-to-deprecate-legacy-tls-in-exchange-online-starting-july/
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Microsoft exigera TLS 1.2 ou ultérieur à compter de juillet 2026 lors des connexions à Exchange Online// Article en anglais //
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Microsoft to require TLS 1.2 or later starting July 2026 when connecting to Exchange Online
https://www.bleepingcomputer.com/news/microsoft/microsoft-to-deprecate-legacy-tls-in-exchange-online-starting-july/
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Microsoft exigera TLS 1.2 ou ultérieur à compter de juillet 2026 lors des connexions à Exchange Online// Article en anglais //
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Microsoft to require TLS 1.2 or later starting July 2026 when connecting to Exchange Online
https://www.bleepingcomputer.com/news/microsoft/microsoft-to-deprecate-legacy-tls-in-exchange-online-starting-july/
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Microsoft exigera TLS 1.2 ou ultérieur à compter de juillet 2026 lors des connexions à Exchange Online// Article en anglais //
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Microsoft to require TLS 1.2 or later starting July 2026 when connecting to Exchange Online
https://www.bleepingcomputer.com/news/microsoft/microsoft-to-deprecate-legacy-tls-in-exchange-online-starting-july/
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Microsoft exigera TLS 1.2 ou ultérieur à compter de juillet 2026 lors des connexions à Exchange Online// Article en anglais //
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Microsoft Phases Out Legacy TLS in Exchange Online
Microsoft is phasing out support for outdated TLS versions (TLS 1.0 and TLS 1.1) for POP3 and IMAP4 connections to Exchange Online, starting July 2026, to boost security. From then on, only TLS 1.2 or later will be accepted, making older connections obsolete.
#TransportLayerSecurity #LegacyTlsDeprecation #ExchangeOnline #Microsoft #Tls10
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https://winbuzzer.com/2026/03/25/microsoft-exchange-server-se-multi-version-support-ended-xcxwbn/
Microsoft Ends Exchange Multi-Version Support in Major Overhaul
#Microsoft #MicrosoftExchangeServer #ExchangeOnline #ExchangeServer #Email #ActiveDirectory #Microsoft365 #Cloud #HybridCloud #Administrators #BigTech
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https://winbuzzer.com/2026/03/25/microsoft-exchange-server-se-multi-version-support-ended-xcxwbn/
Microsoft Ends Exchange Multi-Version Support in Major Overhaul
#Microsoft #MicrosoftExchangeServer #ExchangeOnline #ExchangeServer #Email #ActiveDirectory #Microsoft365 #Cloud #HybridCloud #Administrators #BigTech
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https://winbuzzer.com/2026/03/25/microsoft-exchange-server-se-multi-version-support-ended-xcxwbn/
Microsoft Ends Exchange Multi-Version Support in Major Overhaul
#Microsoft #MicrosoftExchangeServer #ExchangeOnline #ExchangeServer #Email #ActiveDirectory #Microsoft365 #Cloud #HybridCloud #Administrators #BigTech