Receiving no e-mail for confirmation

Hello I have installed this plugin en added two e-mails for admin purposes. But I get no e-mails to confirm the change of e-mail adress.

In my e-maillog I see that the two e-mailsadresses are merged to one e-mail adress. For exampel: [email protected], [email protected] becomes [email protected]@b.com. I seems that the comma don’t work anymore as seperator. And thus I get no e-mail.