SOLVED
@dmarquesgn Made a HTML table from it, looks like this on my testserver:
(Used the code from https://techcommunity.microsoft.com/t5/core-infrastructure-and-security/script-to-send-email-alerts-... as example)
Script:
$When = (Get-Date).Date.AddDays(-30)
$Alerts = Get-ADUser -Filter { whenCreated -ge $When } -Properties whenCreated, PasswordNeverExpires | Select-Object samaccountname, Name, Enabled, PasswordNeverExpires
$style = @'
<style>body{font-family:`"Calibri`",`"sans-serif`"; font-size: 14px;}
@font-face
{font-family:`"Cambria Math`";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
table{border: 1px solid black; border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt;}
th{border: 1px solid black; background: #dddddd; padding: 5px; }
td{border: 1px solid black; padding: 5px; }
.crtsn{font-weight: bold; color: blue; }
.crtexp{font-weight: bold; color: red; }
.crtcn{font-weight: bold; color: orange; }
</style>
'@
$mailbody += '<html><head><meta http-equiv=Content-Type content="text/html; charset=utf-8">' + $style + '</head><body>'
$mailbody += '<p>'
$mailbody += 'These users have been created in the last 30 days ' + "<br />"
$mailbody += '</p>'
$mailbody += '<p><table>'
$mailbody += '<th>samaccountname</th><th>Name</th><th>Enabled</th><th>PasswordNeverExpires</th>'
foreach ($user in $Alerts) {
$mailbody += "<tr><td>" + $user.samaccountname + "</td><td>" + $user.Name + "</td><td>" + $user.Enabled + "</td><td>" + $user.PasswordNeverExpires + "</td></tr>"
}
$mailbody += '</table></p>'
$mailbody += '</body>'
$mailbody += '</html>'
Send-MailMessage -SmtpServer mail.server.com -Port 587 -UseSsl -From mailfromaddress -To mailtoaddress -Subject 'Álert: Users < 30 dias & PasswordNEverExpires' -Body $mailbody -BodyAsHtml -Credential $mycredentials