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--- internet:mail:exchange:exchange_spam [2021/05/20 14:06]
gcooper
+++ internet:mail:exchange:exchange_spam [2024/04/30 11:57] (current)
gcooper
@@ Line 1: / Line 1: @@
 ====== Exchange E-Mail Security ======
+See also **[[internet:mail:exchange:exchange_track_msg|Using the Exchange Shell to Track Messages]]**
 ===== Enable AntiSpam =====
@@ Line 14: / Line 16: @@
   * ''Add-IPAllowListEntry''
   * ''Remove-IPAllowListEntry''
+===== Show Mailbox Anti-Spam =====
+<file>
+Get-MailboxJunkEmailConfiguration -Identity <e-mail address>
+Get-Mailbox -Identity <e-mail address> | Format-List SCL*,Bypass*,*SenderAuth*
+</file>
 ===== SMTP Relay Filters =====
+http://woshub.com/configure-spam-protection-in-exchange-2013-rbl-providers/
 https://blog.ahasayen.com/smtp-relay-exchange-internalsmtpservers/
@@ Line 38: / Line 50: @@
 Set-TransportConfig -InternalSMTPServers @{Add="<ip address1>","<ip address2>"...}
 </file>
+===== DKIM =====
+<note important>Exchange 2019 (on-prem) does not verify incoming DKIM signatures or sign outgoing by default.</note>
+==== Receiving ====
+We currently rely on MailCleaner (inbound mail filtering) to verify DKIM signatures as Exchange does not do so.
+==== Sending ====
+:!: This free tool will sign outgoing messages for the domains you specify.
+<note tip>The GUI configuration tool is not added to the Start Menu but is located here: "C:\Program Files\Exchange DkimSigner\Configuration.DkimSigner.exe"</note>
+https://opentechtips.com/how-to-configure-dkim-on-exchange-2019-the-simple-way/
+https://github.com/Pro/dkim-exchange/wiki/Installation
+https://github.com/Pro/dkim-exchange/wiki

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