Using Powershell to Send Emails via Mimecast

You can send emails via Mimecast instead of 365 , so you don’t need a licensed 365 user.

Login and enable SMTP Email submissions for that user

Use the users Cloud password and email address for Auth

$creds = get-credential

Send-MailMessage -From [email protected] -To [email protected] -Subject "Test Email" -Body "Test SMTP Service from Powershell on Port 587" -SmtpServer au-smtp-outbound-1.mimecast.com -Credential $creds -UseSsl -Port 587

 

If you see

Send-MailMessage : Unable to read data from the transport connection: net_io_connectionclosed

You need to create an Authentication profile with 2fa disabled , and apply it to that user via Application Settings

 

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Tags: mimecast, net_io_connectionclosed, powershell, smtp

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