I installed an automatic subscription php-script on my website, to allow visitors to subscribe themselves to my mailing list.
All works fine except to mail-adresses of hotmail. These mails doesn't reach the hotmail-mailbox. I get the error "unrouteable domain".
Does anybody know what I can do on this problem????
I searched the web, found some things but none of these 'solutions' works for me.
Thanks in advance.