I have read the incomming e-mail questions on this site, but my question is a bit different.
Incomming e-mail (within the same domain) is working, when I send e-mails to a list, they appear within the list. But, when I send a e-mail from the SharePoint system account it stays in the Drop folder. So workflow notifications will not show in the document library
There are no usable errors within the SharePoint logs, it just says, error can't proccess e-mail.
What can I do to solve this one?