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Don't remove thexgeconnector.comdomain. Doing so might break the email flow and stop email processing. For information on how you're notified when there are changes from the M365 console that could impact Sophos Mailflow setup, seeSophos Mailflow Tamper. We create inbound a...
New Tenant Outbound Email Limits for External Recipients in Exchange Online Discover how the new Exchange Online Tenant Outbound External Email Limits work, when emails expire from the 24-hour window, and when your limit resets. 4 minread
We have M365 Business Premium and I currently run SOPHOS Endpoint Adv + Intercept X for local scanning & Proofpoint as our email smart host (AV/Spam/etc). Regarding Proofpoint and M365 Defender, are there any steps to be aware of, prior to upgrading? We have custom inbound/out...
Authentication exchange office 365 security Like 0 Reply 20 Replies Replies sorted by Newest Pieter Rossouw Copper Contributor Aug 07, 2017 Hi This is done Through Tenant Restrictions. You'll configure your outbound Proxy server, to insert a "Restrict-Access-To-Tenants: <perm...
[-AdminDisplayName "<OptionalComments>"] [-EnableFileFilter <$true | $false>] [-FileTypeAction <Reject | Quarantine>] [-FileTypes FileType1,FileType2,...FileTypeN] [-CustomNotifications <$true | $false>] [<Inbound notification options>] [<Outbound notification options>] [-Quaranti...
You need to verify that your NSGs allow outbound traffic on ports 25 and 587: Outbound Security Rules: Port: 25 and 587 Protocol: TCP Destination: The IP addresses or service tags corresponding to M365 SMTP endpoints Action: Allow If you need more info, try to follow the doc...
https://docs.microsoft.com/en-us/microsoft-365/security/office-365-security/use-dkim-to-validate-outbound-email b) Remove the "domain.onmicrosoft.com" DKIM key with a message filter on the ESA when the email is received from your relay server and sign again with the proper key. In b...
Hi, Since yesterday, all outgoing emails from our organization using Office365 (fully cloud) are being flagged as either spam or phishing email by Microsoft Outbound email servers. Due to this our...Show More exchange office 365 Like 2 Reply Rafmoerkens to Philippe_RAYNAUDApr ...
the latter scenario, I think Exchange Online product limits will apply. However, if you allow on-premises to send directly then you lose the MDO anti-virus tripwire for an internal infection and you lose any outbound compliance / auditing controls you might otherwise ...