If a Link in an email contains an absolute URL-Path with Query-Param, Angular decodes this.
Navigation from menu works on this way
<a [routerLink]="node.application.path" [queryParams]="{ reiter: node.application.argument}" (click)="onClickLink(node)">{{ node.name }}</a>
Result is a link like this example: http://localhost:4200/#/service/wissen/content/74433?reiter=74427
On reloading the Page, this will encoded to: http://localhost:4200/#/service/wissen/content/74433%3Freiter%3D74427
Same on Links in emails
Where am I wrong?