// The sender name is put into HTML markup and must not contain HTML
// special characters: MailFormatHelper::htmlToText() would strip or
// decode them, while the expected value below uses the raw string.
'@sender-name'=>$this->randomMachineName(),
];
$plain="In HTML, ampersand must be written as &.\nI saw your house and <wow> it is great. There is too much to say about that beautiful building, it will never fit on one line of text.\nIf a<b and b<c then a<c.";