Send Email Using Powershell Script – Exchange Online provides many different reports to monitor email activity and audit email messages to help with compliance requirements. As an Exchange administrator, you need to monitor
If you’re using the Microsoft 365 admin portal to view the above information, you may have difficulty finding the correct portal. Also, you need access to various admin portals like Microsoft 365 admin center, Exchange admin center, Security and compliance center, etc. Therefore, most admins prefer PowerShell or Microsoft 365 monitoring tool to track email activities.
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This blog lists the top 10 Exchange Online PowerShell cmdlets that help monitor and report on employee email activity. With these cmdlets, you can generate the following Office 365 email reports.
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Email traffic reports help you analyze your organization’s email traffic such as number of emails sent and received, number of spam received and sent, malicious emails, phishing emails, etc.
By default, the cmdlet retrieves email traffic for the past 7 days. With the -StartDate and -EndDate attributes, you can retrieve the email statistics report for the last 90 days.
Administrators often want to know how many emails have been sent and received by users. To view these email statistics, you can use the Get-MailTrafficTopReport cmdlet.
The above cmdlet returns the number of messages for a specified date range sorted by final message order. By default, the cmdlet displays data for the last 7 days. You can get a mail flow status report for up to 90 days by specifying the start date and end date.
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Email protection reports help identify spam and malware detected by Exchange Online Protection (EOP) and email messages that match rules such as mail flow rules, DLP rules, etc.
In some cases, emails sent from your organization are rejected or marked as spam by Microsoft 365. To identify these emails, run the following cmdlet.
Good incoming emails are also sometimes flagged as spam by anti-spam filters. When checking these emails, the admin can add a specific domain or address to the whitelist.
The example below retrieves messages sent by [email protected] that match the condition specified by the transfer rule between June 15, 2021 and June 20, 2021.
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Most organizations set up DLP policies to protect their sensitive email data. To select messages that match the condition defined by DLP policies, you can run the cmdlet below.
Insights into the primary domain’s mail flow status can be gained using the Get-MailFlowStatusReport cmdlet. By providing the “Category” value, you can get reports on top senders and recipients.
The provided example retrieves the top email senders and their email count over the last 90 days. To display the best senders for the allocated period, you can use the –StartDate and EndDate parameters.
Most administrators prefer message tracking to monitor mail flow. With message tracking, administrators can get complete information about a sent, received, removed and deleted message. information include,
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By default, the cmdlet retrieves data for the last 48 hours. If you want to retrieve the data for the last 10 days, you can use the –StartDate and –EndDate parameters. To search message data for more than 10 days, you can use the Start-HistoricalSearch and Get-HistoricalSearch cmdlets.
To create more custom message tracing reports or cmdlet examples for your most needed use cases, you can refer to the dedicated blog on message tracing with PowerShell.
So what if there was an easier way to monitor employee emails? A tool like AdminDroid will help you to track email activities and get a detailed view of your organization’s email flow activities.
AdminDroid provides 250+ pre-built email reports and smart dashboards to learn more about your organization’s email activities at a glance. With Views and Advanced Filter options, you can create custom reports based on your requirements.
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In addition, AdminDroid provides 1500+ reports to get detailed reports on different Office 365 services like Azure AD, Exchange Online, SharePoint Online, Microsoft Teams, OneDrive for Business, Streams, One Note, Yammer, etc.
In addition, AdminDroid offers 100+ reports and some free dashboards to manage users, licenses, groups, group memberships, membership changes, user registrations, password changes, etc. The free version lets you customize, schedule, and export as well. Download AdminDroid’s free Office 365 reporting tool and see how it helps you. In the next two series of articles, we review a topic – How to use the Send Email PowerShell script, which will use an Office 365 email server as your email server. The most common use of “Email PowerShell Script” is
Before we get started with the exact instructions on how to create an email sending PowerShell script, let’s briefly review the way a customer might handle Office 365 email services.
When we want to process an Office 365 (Exchange Online) mail server, we can use one of the following methods:
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A way to use a PowerShell script to process an Office 365 email server using an SMTP session (unencrypted session).
The meaning of Anonymous Connection is that the side dealing with the Office 365 email server (PowerShell script) does not provide any credentials to the user.
The main benefit of this method is that we avoid the procedure of providing user credentials. The need to provide credentials “blindly” for other tasks, such as the need to protect credentials, etc.
The main disadvantage of using an anonymous connection is that the mail server cannot trust the sender because he appears to be anonymous.
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Most of the time the email to be sent will be identified by the PowerShell script as a spoofed email because – the Office 365 recipient email address that we use as the “Sender address” is not authenticated.
The downside of the extension is that when using Anonymous Session, we cannot send email to an “external recipient”, i.e. recipients whose email address the Exchange Online server hosting our domain does not have.
The workaround for this issue can be implemented by creating an inbound Exchange Online e-mail connector or by specifying ten sender e-mail addresses in a whitelist of allowed senders.
Note – If you need more information on how to create this email connector, please read the article – Sending Email to Exchange Online Using Default SMTP Session | Part 2 #4
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A method where a PowerShell script manipulates an Office 365 email server, using a TLS session (encrypted session) + providing user credentials (authentication session).
Secure communication channel – When using the TLS protocol, the communication channel between the host that sends the email and the Office 365 email server is encrypted.
Authenticated Session – The main advantage of this method is that when we give the Office 365 recipient credentials, Exchange Online relates the ‘sender’ as a trusted sender.
Because of this, we don’t need to add extra configuration on the Exchange Online server side, we can also send the email to external recipients who are not hosted on the Exchange Online server.
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In case we want to use “Email PowerShell Script” as a scheduled task, we need to find a solution whereby the PowerShell script can access the necessary credentials which are stored in a file.
Although we can add the password to an unprotected text file (PowerShell file), this option is not recommended.
The Security Needs solution will be implemented through a method where we create an encrypted password file, instruct Send a PowerShell script to access the encrypted file and fetch the required password from that file.
The procedure where we need to encrypt the credentials is more complicated than the scenario where we use an SMTP session without credentials.
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In this section, we review how to create a PowerShell email sending script, which will use Office 365 as a mail server.
In this scenario, we will create a standard SMTP session and not provide any credentials to the user (anonymous connection).
Before running the Send Email PowerShell script, we need to ensure that the following requirements are met:
If in the past we have not used the existing PowerShell console to run a PowerShell script, we will need to configure the PowerShell console to “allow” the PowerShell script to run.
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If you need instructions to read how to enable PowerShell script execution, you can use the instructions in the next section.
We need to verify that our network firewall includes a rule that allows our desktop to run an SMTP session (port 25) with the Office 365 email server.
If you run PowerShell Script Send Email from a desktop that uses a dynamic public IP address, such as your home network, the Office 365 (Exchange Online) email server will not accept connection requests.
You will need to use a host that is on a network that uses a static IP address to represent internal hosts.
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In an Office 365 environment, if we want to use an unauthenticated session with an Office 365 email server, we need to specify the Exchange Online hostname which is our public record domain in Office 365.
Note – We’ll look at how to get Exchange Online hostname information in the next section.
Task 1 #3 – Get hostname information from the MX record which is your public domain name in Office 365
In order to be able to get the Office 365 email server hostname which is our public domain name, we will use the Office 365 admin portal.
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In our scenario, we will choose to display the domain name configuration – by double-clicking on the given domain name.
In our scenario, we saved the “Send E-mail PowerShell” script in the script folder, which we created on the C: drive.
You can read more detailed information about the PowerShell commands used in the script in the articles:
In order to be able to run the script from PowerShell, we will need to set the default exacion policy for PowerShell.
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