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Mail User Guide
Mail can filter junk mail from your inbox, based on what it learns from you when you mark email messages as junk or not junk and the settings in Junk Mail preferences.
Tip: If you don’t like spam, make sure the junk mail filter is on. Choose Mail > Preferences, click Junk Mail, then verify “Enable junk mail filtering” is selected.
Mark messages as junk or not junk
Each time you confirm a message as junk or not junk, the junk mail filter improves so Mail can better identify junk mail.
Change junk mail filter settings
The default settings catch most of the junk mail you receive, but you can customize the filter.
Reset the junk mail filter
Resetting the junk mail filter to its original state removes what Mail learned from you whenever you marked emails as junk or not junk.
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In Microsoft 365 organizations with mailboxes in Exchange Online or standalone Exchange Online Protection (EOP) organizations without Exchange Online mailboxes, inbound email messages are automatically protected against spam by EOP. EOP uses anti-spam policies (also known as spam filter policies or content filter policies) as part of your organization's overall defense against spam. For more information, see Anti-spam protection.
Admins can view, edit, and configure (but not delete) the default anti-spam policy. For greater granularity, you can also create custom anti-spam policies that apply to specific users, groups, or domains in your organization. Custom policies always take precedence over the default policy, but you can change the priority (running order) of your custom policies.
You can configure anti-spam policies in the Security & Compliance Center or in PowerShell (Exchange Online PowerShell for Microsoft 365 organizations with mailboxes in Exchange Online; standalone EOP PowerShell for organizations without Exchange Online mailboxes).
Anti-spam policies in the Security & Compliance Center vs PowerShell
The basic elements of an anti-spam policy in EOP are:
The difference between these two elements isn't obvious when you manage anti-spam polices in the Security & Compliance Center:
In Exchange Online PowerShell or standalone EOP PowerShell, the difference between spam filter policies and spam filter rules is apparent. You manage spam filter policies by using the *-HostedContentFilterPolicy cmdlets, and you manage spam filter rules by using the *-HostedContentFilterRule cmdlets.
Default anti-spam policy
Every organization has a built-in anti-spam policy named Default that has these properties:
To increase the effectiveness of spam filtering, you can create custom anti-spam policies with stricter settings that are applied to specific users or groups of users.
What do you need to know before you begin?
Spam Filter For Mac MailUse the Security & Compliance Center to create anti-spam policies
Creating a custom anti-spam policy in the Security & Compliance Center creates the spam filter rule and the associated spam filter policy at the same time using the same name for both.
Use the Security & Compliance Center to view anti-spam policies
Use the Security & Compliance Center to modify anti-spam policies
For custom anti-spam policies, the available settings in the flyout that appears are identical to those described in the Use the Security & Compliance Center to create anti-spam policies section.
For the default anti-spam policy named Default spam filter policy, the Applied to section isn't available (the policy applies to everyone), and you can't rename the policy.
To enable or disable a policy, set the policy priority order, or configure the end-user quarantine notifications, see the following sections.
Enable or disable anti-spam policies
You can't disable the default anti-spam policy.
Set the priority of custom anti-spam policies
By default, anti-spam policies are given a priority that's based on the order they were created in (newer polices are lower priority than older policies). A lower priority number indicates a higher priority for the policy (0 is the highest), and policies are processed in priority order (higher priority policies are processed before lower priority policies). No two policies can have the same priority.
Custom anti-spam policies are displayed in the order they're processed (the first policy has the Priority value 0). The default anti-spam policy named Default spam filter policy has the priority value Lowest, and you can't change it.
Note: In the Security & Compliance Center, you can only change the priority of the anti-spam policy after you create it. In PowerShell, you can override the default priority when you create the spam filter rule (which can affect the priority of existing rules).
To change the priority of a policy, move the policy up or down in the list (you can't directly modify the Priority number in the Security & Compliance Center).
Configure end-user spam notifications
When a spam filtering verdict quarantines a message, you can configure end-user spam notifications to let recipients know what happened to messages that were sent to them. For more information about these notifications, see End-user spam notifications in EOP.
Use the Security & Compliance Center to remove anti-spam policies
You can't remove the default policy.
Use Exchange Online PowerShell or standalone EOP PowerShell to configure anti-spam policies
The following anti-spam policy settings are only available in PowerShell: https://unisupernal692.weebly.com/torrent-gianni-morandi-grazie-a-tutti-morandi.html.
Use PowerShell to create anti-spam policies
Creating an anti-spam policy in PowerShell is a two-step process:
Notes:
Step 1: Use PowerShell to create a spam filter policy
To create a spam filter policy, use this syntax:
This example creates a spam filter policy named Contoso Executives with the following settings:
Note
New-HostedContentFilterPolicy and Set-HostedContentFilterPolicy contain an older ZapEnabled parameter, as well as newer PhishZapEnabled and SpamZapEnabled parameters. The ZapEnabled parameter was deprecated in February, 2020. The PhishZapEnabled and SpamZapEnabled parameters used to inherit their values from the ZapEnabled parameter. But, if you use the PhishZapEnabled and SpamZapEnabled parameters in a command or you use the Spam ZAP or Phish ZAP settings in the anti-spam policy in the Security & Compliance Center, the value of the ZapEnabled parameter is ignored. In other words, don't use the ZapEnabled parameter; use the PhishZapEnabled and SpamZapEnabled parameters instead.
For detailed syntax and parameter information, see New-HostedContentFilterPolicy.
Step 2: Use PowerShell to create a spam filter rule
To create a spam filter rule, use this syntax:
This example creates a new spam filter rule named Contoso Executives with these settings:
For detailed syntax and parameter information, see New-HostedContentFilterRule.
Use PowerShell to view spam filter policies
To return a summary list of all spam filter policies, run this command:
To return detailed information about a specific spam filter policy, use the this syntax:
This example returns all the property values for the spam filter policy named Executives.
For detailed syntax and parameter information, see Get-HostedContentFilterPolicy.
Use PowerShell to view spam filter rules
To view existing spam filter rules, use the following syntax:
To return a summary list of all spam filter rules, run this command:
To filter the list by enabled or disabled rules, run the following commands:
To return detailed information about a specific spam filter rule, use this syntax:
This example returns all the property values for the spam filter rule named Contoso Executives.
For detailed syntax and parameter information, see Get-HostedContentFilterRule.
Use PowerShell to modify spam filter policies
Other than the following items, the same settings are available when you modify a malware filter policy in PowerShell as when you create the policy as described in the Step 1: Use PowerShell to create a spam filter policy section earlier in this topic.
To modify a spam filter policy, use this syntax:
For detailed syntax and parameter information, see Set-HostedContentFilterPolicy.
Use PowerShell to modify spam filter rules
The only setting that isn't available when you modify a spam filter rule in PowerShell is the Enabled parameter that allows you to create a disabled rule. To enable or disable existing spam filter rules, see the next section.
Media converter mac free download. Otherwise, no additional settings are available when you modify a spam filter rule in PowerShell. The same settings are available when you create a rule as described in the Step 2: Use PowerShell to create a spam filter rule section earlier in this topic.
To modify a spam filter rule, use this syntax:
This example renames the existing spam filter rule named
{Fabrikam Spam Filter} that might cause problems in the Security & Compliance Center.
For detailed syntax and parameter information, see Set-HostedContentFilterRule.
Use PowerShell to enable or disable spam filter rules
Enabling or disabling a spam filter rule in PowerShell enables or disables the whole anti-spam policy (the spam filter rule and the assigned spam filter policy). You can't enable or disable the default anti-spam policy (it's always always applied to all recipients).
To enable or disable a spam filter rule in PowerShell, use this syntax:
This example disables the spam filter rule named Marketing Department.
This example enables same rule.
For detailed syntax and parameter information, see Enable-HostedContentFilterRule and Disable-HostedContentFilterRule.
Use PowerShell to set the priority of spam filter rules
The highest priority value you can set on a rule is 0. The lowest value you can set depends on the number of rules. For example, if you have five rules, you can use the priority values 0 through 4. Changing the priority of an existing rule can have a cascading effect on other rules. For example, if you have five custom rules (priorities 0 through 4), and you change the priority of a rule to 2, the existing rule with priority 2 is changed to priority 3, and the rule with priority 3 is changed to priority 4.
To set the priority of a spam filter rule in PowerShell, use the following syntax:
This example sets the priority of the rule named Marketing Department to 2. All existing rules that have a priority less than or equal to 2 are decreased by 1 (their priority numbers are increased by 1).
Notes:
Spam Filtering Software For Mac DownloadUse PowerShell to remove spam filter policies
When you use PowerShell to remove a spam filter policy, the corresponding spam filter rule isn't removed.
To remove a spam filter policy in PowerShell, use this syntax:
This example removes the spam filter policy named Marketing Department.
For detailed syntax and parameter information, see Remove-HostedContentFilterPolicy.
Use PowerShell to remove spam filter rules
When you use PowerShell to remove a spam filter rule, the corresponding spam filter policy isn't removed.
To remove a spam filter rule in PowerShell, use this syntax:
This example removes the spam filter rule named Marketing Department.
For detailed syntax and parameter information, see Remove-HostedContentFilterRule.
How do you know these procedures worked?Send a GTUBE message to test your spam policy settings
Note
These steps will only work if the email organization that you're sending the GTUBE message from doesn't scan for outbound spam. If it does, the test message can't be sent.
Generic Test for Unsolicited Bulk Email (GTUBE) is a text string that you include in a test message to verify your organization's anti-spam settings. A GTUBE message is similar to the European Institute for Computer Antivirus Research (EICAR) text file for testing malware settings.
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Include the following GTUBE text in an email message on a single line, without any spaces or line breaks:
Allow/Block ListsBest Spam Filtering Software For Mac
There will be times when our filters will miss the message or it takes time for our systems to catch up to it. In this cases, the antispam policy has an Allow and a Block list available to override the current verdict. This option should only be used sparingly since lists can become unmanageable and temporarily since our filtering stack should be doing what it is supposed to be doing.
Spam Filtering Services
Tip
Spam Filtering Tools
There may be situations where your organization may not agree with the verdict the service provides. In this case, you may want to keep the Allow or Block listing permanent. However, if you are going to put a domain on the Allow list for extended periods of time, you should tell the sender to make sure that their domain is authenticated and set to DMARC reject if it is not.
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