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Clients/Contoso Legal LLP

Contoso Legal LLP

contoso.onmicrosoft.com

Mail rules and protection

Mail flow rules and what each does, connectors, and the anti-spam, anti-phishing and anti-malware policies (Safe Links and Safe Attachments too) with whom each applies to.

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Needs attention 0

Nothing needs attention in the rules, connectors and policies read.

Mail flow rules 1

Exchange's mail flow (transport) rules, in the order they run. Rules testing without acting (test mode) show as Testing.

RuleOnPriorityIfThenExcept ifLast changed
Tag mail from outsideYes0From outside the organisationAdds “[EXTERNAL]” to the subject18 Aug 2025

How mail reaches Microsoft 365 and leaves it other than directly: through a filtering service, a partner, or servers on the premises.

ConnectorDirectionOnDomainsServersEncryptionLast changed
From mail filtering serviceIncomingYesAny domain198.51.100.20, 198.51.100.21Required30 May 2025
To mail filtering serviceOutgoingYesAny domainrelay.mailfilter.exampleTLS with a certificate for the domain30 May 2025

The default policy of each kind applies to everyone no other policy covers. A preset (Standard or Strict) overrides the policies below for the people it covers.

PolicyKindApplies toPresetSettingsLast changed
DefaultAnti-spamEveryone no other policy covers
Spam: Junk folder, High confidence spam: Quarantine + 4 more
  • Spam: Junk folder
  • High confidence spam: Quarantine
  • Phishing: Quarantine
  • High confidence phishing: Quarantine
  • Bulk: Junk folder
  • Bulk threshold 7
27 Sep 2025
Office365 AntiPhish DefaultAnti-phishingEveryone no other policy coversSpoof intelligence: on, Honours DMARC: on, Unauthenticated sender mark: on27 Sep 2025
DefaultAnti-malwareEveryone no other policy coversCommon attachments filter: on (12 file types), Removes malware after delivery: on27 Sep 2025

Data from Mail rules and protection (), Mailboxes ().