PowerShell has built-in support for sending emails: Send-MailMessage! All you need is an SMTP server. However, with standard encoding you may run into issues where special characters are mangled. Use the -Encoding parameter and specify UTF8 to preserve such characters.
Send-MailMessage -Body 'I can send special characters: äöüß' -From youraccount@email.com -to someone@somewhere.com -Credential (Get-Credential youraccount@email.com) -SmtpServer smtp.email.com -Subject 'Sending Mail From PowerShell' -Encoding ([System.Text.Encoding]::UTF8)