Hello Raam,
For some strange reason, part of the mailing is working. I installed the WP-Mail-Smtp plugin. However still no emails were send. I disabled it. And after i few days I got a reaction from someone she had received a (comment mail) mail about an update.
Strange thing is that the confirmation mails don’t arrive after subscribing. I also noticed that after changing some of the mail html code, no mails were send anymore. I tried to figure out what happened, but after resetting all and changing the mail-parts one-by-one, it just worked again. To me, I used the same html, but hey, who knows I changed something :-).
Any explanations for this or something I could look at?