You should ask your mail provider, which is the one blocking the mail.
Type: Posts; User: karl94
You should ask your mail provider, which is the one blocking the mail.
It's the mail provider that blocks the mails, from our end it's all sent correctly.
You shouldn't use that from header: it will likely trigger every spam filter. Use instead your alias (enjoytips at altervista dot org) in the from header.
On AlterVista you can only send emails by using the PHP email function. Which code are you using?