[TYPO3] Directmail: rejected mail because of wrong emailadres in header

[H.E.Weenink | Aristo WebDesign]

I  have the following problem. 
 
I use tcdirectmail for sending my mail. 
When I send to testreceivers the header of the mail is correct. Example:
info at aristo-webdesign.nl

When I send the real list with cron, the header changes to:
<mailto:comfusion at sv01.aristo-webdesign.nl>
comfusion at sv01.aristo-webdesign.nl 
That is name of account at nameofserver    And that gives lots of rejected
mail, because the domainname is not known. 
 
How to solve this problem? 
 
Regards, Eef